SimpleX Chat: secure messenger
Privacy redefined: no user IDs
Free
5.7.1for iPhone, iPod touch
8.9
87 Ratings
SimpleX Chat
Developer
205.3 MB
Size
May 5, 2024
Update Date
Social Networking
Category
4+
Age Rating
Age Rating
SimpleX Chat: secure messenger Screenshots
About SimpleX Chat: secure messenger
SimpleX - the first messaging platform without user identifiers of any kind (not even random numbers) - 100% private by design!
Security assessment by Trail of Bits: https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html
SimpleX Chat features:
- end-to-end encrypted messages, with editing, replies and deletion.
- disappearing messages with opt-out per contact/group.
- message reactions.
- delivery receipts, with opt-out per contact or group.
- multiple chat profiles, with hidden profiles.
- app access and self-destruct passcodes.
- incognito mode - unique to SimpleX Chat.
- sending end-to-end encrypted images and files.
- voice messages up to 5 minutes – also end-to-end encrypted.
- "live" messages – they update for all recipients as you type them, every few seconds - unique to SimpleX Chat.
- single-use and long-term user "addresses".
- secret chat groups - only group members know the group exists and who is the member.
- end-to-end encrypted audio and video calls.
- connection security code verification, for contacts and group members – to protect from man-in-the-middle attacks (e.g. invitation link substitution).
- end-to-end encrypted push notifications (they contain only encrypted meta-data, not the actual content).
- encrypted portable chat database - you can transfer your chat contacts and history to another device.
- all local files and media are encrypted by default.
- animated images and "stickers" (e.g., from GIF and PNG files and from 3rd party keyboards).
SimpleX Chat advantages:
- privacy of your identity, profile, contacts and metadata: unlike any other existing messaging platform, SimpleX uses no phone numbers or any other identifiers assigned to the users - not even random numbers. This protects the privacy of who you are communicating with, hiding it from SimpleX platform servers and from any observers.
- complete protection against spam and abuse: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address.
- full ownership, control and security of your data: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received.
- decentralized proxied peer-to-peer network: you can use SimpleX Chat via your own relay servers and still communicate with people using pre-configured or any other SimpleX relay servers.
- fully open-source code.
You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed.
Your profile and contacts are only stored in the app on your device - relay servers do not have access to this information.
All messages are end-to-end encrypted using open-source double-ratchet protocol; the messages are delivered via relay servers using open-source SimpleX Messaging Protocol.
Please send us any questions via the app (connect to the team via the app settings!), email chat@simplex.chat or submit issues on GitHub (https://github.com/simplex-chat/simplex-chat/issues)
Ream more about SimpleX Chat at https://simplex.chat
Get source code in our GitHub repo: https://github.com/simplex-chat/simplex-chat
Follow us on Reddit (r/SimpleXChat/), Twitter (@SimpleXChat) and Mastodon (https://mastodon.social/@simplex) for the latest updates.
Security assessment by Trail of Bits: https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html
SimpleX Chat features:
- end-to-end encrypted messages, with editing, replies and deletion.
- disappearing messages with opt-out per contact/group.
- message reactions.
- delivery receipts, with opt-out per contact or group.
- multiple chat profiles, with hidden profiles.
- app access and self-destruct passcodes.
- incognito mode - unique to SimpleX Chat.
- sending end-to-end encrypted images and files.
- voice messages up to 5 minutes – also end-to-end encrypted.
- "live" messages – they update for all recipients as you type them, every few seconds - unique to SimpleX Chat.
- single-use and long-term user "addresses".
- secret chat groups - only group members know the group exists and who is the member.
- end-to-end encrypted audio and video calls.
- connection security code verification, for contacts and group members – to protect from man-in-the-middle attacks (e.g. invitation link substitution).
- end-to-end encrypted push notifications (they contain only encrypted meta-data, not the actual content).
- encrypted portable chat database - you can transfer your chat contacts and history to another device.
- all local files and media are encrypted by default.
- animated images and "stickers" (e.g., from GIF and PNG files and from 3rd party keyboards).
SimpleX Chat advantages:
- privacy of your identity, profile, contacts and metadata: unlike any other existing messaging platform, SimpleX uses no phone numbers or any other identifiers assigned to the users - not even random numbers. This protects the privacy of who you are communicating with, hiding it from SimpleX platform servers and from any observers.
- complete protection against spam and abuse: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address.
- full ownership, control and security of your data: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received.
- decentralized proxied peer-to-peer network: you can use SimpleX Chat via your own relay servers and still communicate with people using pre-configured or any other SimpleX relay servers.
- fully open-source code.
You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed.
Your profile and contacts are only stored in the app on your device - relay servers do not have access to this information.
All messages are end-to-end encrypted using open-source double-ratchet protocol; the messages are delivered via relay servers using open-source SimpleX Messaging Protocol.
Please send us any questions via the app (connect to the team via the app settings!), email chat@simplex.chat or submit issues on GitHub (https://github.com/simplex-chat/simplex-chat/issues)
Ream more about SimpleX Chat at https://simplex.chat
Get source code in our GitHub repo: https://github.com/simplex-chat/simplex-chat
Follow us on Reddit (r/SimpleXChat/), Twitter (@SimpleXChat) and Mastodon (https://mastodon.social/@simplex) for the latest updates.
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What's New in the Latest Version 5.7.1
Last updated on May 5, 2024
Old Versions
New in v5.7.1:
- fix connection failures on slow network when connecting via link/contact address.
- improved networking.
New in v5.7:
- quantum resistant end-to-end encryption – will be enabled for all direct chats!
- forward and save messages and files, without revealing the source.
- improved calls: in-call sounds when connecting calls, better support for bluetooth headphones.
- customizable shapes of profile images - from square to circle.
- more reliable network connection.
Read more: https://simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
- fix connection failures on slow network when connecting via link/contact address.
- improved networking.
New in v5.7:
- quantum resistant end-to-end encryption – will be enabled for all direct chats!
- forward and save messages and files, without revealing the source.
- improved calls: in-call sounds when connecting calls, better support for bluetooth headphones.
- customizable shapes of profile images - from square to circle.
- more reliable network connection.
Read more: https://simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
Show More
Version History
5.7.1
May 5, 2024
New in v5.7.1:
- fix connection failures on slow network when connecting via link/contact address.
- improved networking.
New in v5.7:
- quantum resistant end-to-end encryption – will be enabled for all direct chats!
- forward and save messages and files, without revealing the source.
- improved calls: in-call sounds when connecting calls, better support for bluetooth headphones.
- customizable shapes of profile images - from square to circle.
- more reliable network connection.
Read more: https://simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
- fix connection failures on slow network when connecting via link/contact address.
- improved networking.
New in v5.7:
- quantum resistant end-to-end encryption – will be enabled for all direct chats!
- forward and save messages and files, without revealing the source.
- improved calls: in-call sounds when connecting calls, better support for bluetooth headphones.
- customizable shapes of profile images - from square to circle.
- more reliable network connection.
Read more: https://simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
5.7
Apr 27, 2024
New in v5.7:
- quantum resistant end-to-end encryption – will be enabled for all direct chats!
- forward and save messages and files, without revealing the source.
- improved calls: in-call sounds when connecting calls, better support for bluetooth headphones.
- customizable shapes of profile images - from square to circle.
- more reliable network connection.
Read more: https://simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
- quantum resistant end-to-end encryption – will be enabled for all direct chats!
- forward and save messages and files, without revealing the source.
- improved calls: in-call sounds when connecting calls, better support for bluetooth headphones.
- customizable shapes of profile images - from square to circle.
- more reliable network connection.
Read more: https://simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
5.6.1
Apr 5, 2024
New in v5.6.1:
- reduced memory usage (by 20-25%).
- improved notifications stability.
- fixes to message layout.
New in v5.6:
- quantum resistant end-to-end encryption (BETA) – enable for the new contacts (see the blog post).
- migrate all app data to another device via QR code (see the blog post).
- use the app during the audio and video calls.
- admins can block a member for all other members.
- faster leaving and deleting groups.
- reduced memory usage when sending large files.
- improve chat message rendering.
- filtering chats no longer includes muted chats with unread messages.
Also, we added Hungarian interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240323-simplex-network-privacy-non-profit-v5-6-quantum-resistant-e2e-encryption-simple-migration.html
- reduced memory usage (by 20-25%).
- improved notifications stability.
- fixes to message layout.
New in v5.6:
- quantum resistant end-to-end encryption (BETA) – enable for the new contacts (see the blog post).
- migrate all app data to another device via QR code (see the blog post).
- use the app during the audio and video calls.
- admins can block a member for all other members.
- faster leaving and deleting groups.
- reduced memory usage when sending large files.
- improve chat message rendering.
- filtering chats no longer includes muted chats with unread messages.
Also, we added Hungarian interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240323-simplex-network-privacy-non-profit-v5-6-quantum-resistant-e2e-encryption-simple-migration.html
5.6
Mar 23, 2024
New in v5.6:
- quantum resistant end-to-end encryption (BETA) – enable for the new contacts (see the blog post).
- migrate all app data to another device via QR code (see the blog post).
- use the app during the audio and video calls.
- admins can block a member for all other members.
- faster leaving and deleting groups.
- reduced memory usage when sending large files.
- improve chat message rendering.
- filtering chats no longer includes muted chats with unread messages.
Also, we added Hungarian interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240323-simplex-network-privacy-non-profit-v5-6-quantum-resistant-e2e-encryption-simple-migration.html
- quantum resistant end-to-end encryption (BETA) – enable for the new contacts (see the blog post).
- migrate all app data to another device via QR code (see the blog post).
- use the app during the audio and video calls.
- admins can block a member for all other members.
- faster leaving and deleting groups.
- reduced memory usage when sending large files.
- improve chat message rendering.
- filtering chats no longer includes muted chats with unread messages.
Also, we added Hungarian interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240323-simplex-network-privacy-non-profit-v5-6-quantum-resistant-e2e-encryption-simple-migration.html
5.5.6
Feb 28, 2024
New in v5.5.1-6:
- fixes and improvements.
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- fixes and improvements.
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.5.5
Feb 22, 2024
New in v5.5.1-5:
- fixes and small improvements.
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- fixes and small improvements.
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.5.4
Feb 19, 2024
New in v5.5.1-4:
- fixes and small improvements.
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- fixes and small improvements.
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.5.3
Feb 14, 2024
New in v5.5.1-3:
- fixes!
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- fixes!
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.5.2
Feb 4, 2024
New in v5.5.1-2:
- fixes!
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- fixes!
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.5.1
Jan 31, 2024
New in v5.5.1:
- fixes!
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- fixes!
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.5
Jan 23, 2024
New in v5.5:
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
- private notes - with encrypted files and media.
- paste link to connect - search bar now accepts invitation links.
- optional recent history in groups.
- improved message delivery - with reduced battery usage.
- reveal secrets in messages by tapping them.
- all files in local app storage are encrypted by default.
- allow deleting the last visible user profile.
- do not share contact address in member profile.
Also, we added Turkish interface - thanks to the users and Weblate (https://github.com/simplex-chat/simplex-chat/tree/stable#help-translating-simplex-chat).
Read more: https://simplex.chat/blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.html
5.4.4
Jan 21, 2024
New in v5.4.4:
- improved stability of message delivery.
- reduced battery and traffic usage.
New in v5.4.1-3:
- improved audio/video calls (especially on slow networks).
- improved push notifications.
- videos are transcoded to smaller size, and metadata is stripped.
- app stopped in Database settings shows warning before starting.
- fixed iPhone 7 and older not connecting to desktop.
- lower CPU usage.
- many fixes.
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
- improved stability of message delivery.
- reduced battery and traffic usage.
New in v5.4.1-3:
- improved audio/video calls (especially on slow networks).
- improved push notifications.
- videos are transcoded to smaller size, and metadata is stripped.
- app stopped in Database settings shows warning before starting.
- fixed iPhone 7 and older not connecting to desktop.
- lower CPU usage.
- many fixes.
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
5.4.3
Jan 11, 2024
New in v5.4.1-3:
- improved audio/video calls (especially on slow networks).
- improved push notifications.
- videos are transcoded to smaller size, and metadata is stripped.
- app stopped in Database settings shows warning before starting.
- fixed iPhone 7 and older not connecting to desktop.
- lower CPU usage.
- many fixes.
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
- improved audio/video calls (especially on slow networks).
- improved push notifications.
- videos are transcoded to smaller size, and metadata is stripped.
- app stopped in Database settings shows warning before starting.
- fixed iPhone 7 and older not connecting to desktop.
- lower CPU usage.
- many fixes.
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
5.4.2
Dec 30, 2023
New in v5.4.1-2:
- improved audio/video calls (especially on slow networks).
- improved push notifications.
- videos are transcoded to smaller size, and metadata is stripped.
- app stopped in Database settings shows warning before starting.
- fixed iPhone 7 and older not connecting to desktop.
- lower CPU usage.
- many fixes.
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
- improved audio/video calls (especially on slow networks).
- improved push notifications.
- videos are transcoded to smaller size, and metadata is stripped.
- app stopped in Database settings shows warning before starting.
- fixed iPhone 7 and older not connecting to desktop.
- lower CPU usage.
- many fixes.
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
5.4.1
Dec 12, 2023
New in v5.4.1:
- improved audio/video calls (especially on slow networks)
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
- improved audio/video calls (especially on slow networks)
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
5.4
Nov 25, 2023
New in v5.4:
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
- Link mobile and desktop apps via secure quantum-resistant protocol.
- Better groups:
- Faster to join and more reliable.
- Create groups with incognito profile.
- Block group members to hide their messages.
- Prohibit files and media in a group.
- Calls connect faster.
- Other improvements:
- profile names now allow spaces.
- when you delete contacts, they are optionally notified.
- and more!
Read more: https://simplex.chat/blog/20231125-simplex-chat-v5-4-quantum-resistant-mobile-from-desktop-better-groups.html
5.3.2
Oct 24, 2023
New in v5.3.1-2:
- fix some of the background crashes.
- fix "Protect app screen".
New in v5.3:
- encrypt local files in app storage (except videos).
- improved groups:
- delivery receipts (up to 20 members).
- send direct messages to members even after contact is deleted.
- faster and more stable.
- simplified incognito mode.
- new privacy settings: show last messages & save draft.
- faster app loading.
- reduced memory usage by 40%.
4 new interface languages added by the users: Bulgarian, Finnish, Thai and Ukrainian!
- fix some of the background crashes.
- fix "Protect app screen".
New in v5.3:
- encrypt local files in app storage (except videos).
- improved groups:
- delivery receipts (up to 20 members).
- send direct messages to members even after contact is deleted.
- faster and more stable.
- simplified incognito mode.
- new privacy settings: show last messages & save draft.
- faster app loading.
- reduced memory usage by 40%.
4 new interface languages added by the users: Bulgarian, Finnish, Thai and Ukrainian!
5.3.1
Sep 25, 2023
New in v5.3.1:
- minor fixes
New in v5.3:
- encrypt local files in app storage (except videos).
- improved groups:
- delivery receipts (up to 20 members).
- send direct messages to members even after contact is deleted.
- faster and more stable.
- simplified incognito mode.
- new privacy settings: show last messages & save draft.
- faster app loading.
- reduced memory usage by 40%.
4 new interface languages added by the users: Bulgarian, Finnish, Thai and Ukrainian!
- minor fixes
New in v5.3:
- encrypt local files in app storage (except videos).
- improved groups:
- delivery receipts (up to 20 members).
- send direct messages to members even after contact is deleted.
- faster and more stable.
- simplified incognito mode.
- new privacy settings: show last messages & save draft.
- faster app loading.
- reduced memory usage by 40%.
4 new interface languages added by the users: Bulgarian, Finnish, Thai and Ukrainian!
5.3
Sep 25, 2023
New in v5.3:
- encrypt local files in app storage (except videos).
- improved groups:
- delivery receipts (up to 20 members).
- send direct messages to members even after contact is deleted.
- faster and more stable.
- simplified incognito mode.
- new privacy settings: show last messages & save draft.
- faster app loading.
- reduced memory usage by 40%.
4 new interface languages added by the users: Bulgarian, Finnish, Thai and Ukrainian!
- encrypt local files in app storage (except videos).
- improved groups:
- delivery receipts (up to 20 members).
- send direct messages to members even after contact is deleted.
- faster and more stable.
- simplified incognito mode.
- new privacy settings: show last messages & save draft.
- faster app loading.
- reduced memory usage by 40%.
4 new interface languages added by the users: Bulgarian, Finnish, Thai and Ukrainian!
5.2.3
Aug 14, 2023
New in v5.2.1-3:
- faster app loading.
- improved connection timeouts.
- new preset SMP relays.
- optimized markdown parsing.
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
- faster app loading.
- improved connection timeouts.
- new preset SMP relays.
- optimized markdown parsing.
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
5.2.2
Aug 11, 2023
New in v5.2.1-2:
- improved connection timeouts.
- new preset SMP relays.
- optimized markdown parsing.
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
- improved connection timeouts.
- new preset SMP relays.
- optimized markdown parsing.
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
5.2.1
Aug 2, 2023
New in v5.2.1:
- improved connection timeouts.
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
- improved connection timeouts.
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
5.2
Jul 22, 2023
New in v5.2:
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
- message delivery receipts – with opt out per contact!
- filter favorite and unread chats.
- keep your connections working after restoring from backup.
- share your address with your contacts and group members via your chat profile.
- better disappearing messages:
- send disappearing message even when disabled in a chat.
- max time to disappear increased to 1 year.
- a bit more usable groups:
- search for new and existing members.
- view full original replied to message in info.
- chat preference to allow/prohibit message reactions.
- pull chat list to reconnect relays.
- more stable message delivery.
Read more details in this post: https://simplex.chat/blog/20230722-simplex-chat-v5-2-message-delivery-receipts.html
5.1.3
Jun 15, 2023
New in v5.1:
- message reactions - finally!
- improved messages:
- voice messages up to 5 minutes.
- set custom time to disappear.
- message editing history.
- self-destruct passcode
We also added Japanese interface language – thanks to the users and Weblate.
v5.1.1-3 fixed video calls and other issues.
Read more details in this post: https://simplex.chat/blog/20230523-simplex-chat-v5-1-message-reactions-self-destruct-passcode.html
- message reactions - finally!
- improved messages:
- voice messages up to 5 minutes.
- set custom time to disappear.
- message editing history.
- self-destruct passcode
We also added Japanese interface language – thanks to the users and Weblate.
v5.1.1-3 fixed video calls and other issues.
Read more details in this post: https://simplex.chat/blog/20230523-simplex-chat-v5-1-message-reactions-self-destruct-passcode.html
5.1.2
May 27, 2023
New in v5.1:
- message reactions - finally!
- improved messages:
- voice messages up to 5 minutes.
- set custom time to disappear.
- message editing history.
- self-destruct passcode
We also added Japanese interface language – thanks to the users and Weblate.
v5.1.1-2 fixed the bug with message reception and other minor issues.
Read more details in this post: https://simplex.chat/blog/20230523-simplex-chat-v5-1-message-reactions-self-destruct-passcode.html
- message reactions - finally!
- improved messages:
- voice messages up to 5 minutes.
- set custom time to disappear.
- message editing history.
- self-destruct passcode
We also added Japanese interface language – thanks to the users and Weblate.
v5.1.1-2 fixed the bug with message reception and other minor issues.
Read more details in this post: https://simplex.chat/blog/20230523-simplex-chat-v5-1-message-reactions-self-destruct-passcode.html
SimpleX Chat: secure messenger FAQ
SimpleX Chat: secure messenger is available in regions other than the following restricted countries:
China
SimpleX Chat: secure messenger supports English, Bulgarian, Czech, Dutch, Finnish, French, German, Hungarian, Italian, Japanese, Polish, Russian, Simplified Chinese, Spanish, Thai, Turkish, Ukrainian
Click here to learn how to download SimpleX Chat: secure messenger in restricted country or region.
Check the following list to see the minimum requirements of SimpleX Chat: secure messenger.
iPhone
Requires iOS 15.0 or later.
iPod touch
Requires iOS 15.0 or later.
