SimpleX Chat: secure messenger

SimpleX Chat: secure messenger


Privacy redefined: no user IDs


Gratuit

5.7.3for iPhone, iPod touch
8.9
85 Ratings
SimpleX Chat
Developer
206,1 Mo
Size
May 14, 2024
Update Date
Social Networking
Category
4+
Age Rating
Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
SimpleX Chat: secure messenger Captures d'écran
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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.
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Quoi de neuf dans la dernière version 5.7.3

Last updated on May 14, 2024
Vieilles Versions
New in v5.7.1-3:
- fix file download error during network connection switch.
- 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
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Version History
5.7.3
May 14, 2024
New in v5.7.1-3:
- fix file download error during network connection switch.
- 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
5.7.2
May 11, 2024
New in v5.7.1-2:
- fix file download error during network connection switch.
- 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
5.7.1
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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!
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!
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!
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
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
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
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

SimpleX Chat: secure messenger FAQ

SimpleX Chat: secure messenger est disponible dans des régions autres que les pays restreints suivants:
China
SimpleX Chat: secure messenger prend en charge Français, Allemand, Anglais, Bulgare, Chinois simplifié, Espagnol, Finnois, Hongrois, Italien, Japonais, Néerlandais, Polonais, Russe, Tchèque, Thaï, Turc, Ukrainien
Cliquez ici pour savoir comment télécharger SimpleX Chat: secure messenger dans un pays ou une région restreints.
Consultez la liste suivante pour voir les exigences minimales de SimpleX Chat: secure messenger.
iPhone
Nécessite iOS 15.0 ou version ultérieure.
iPod touch
Nécessite iOS 15.0 ou version ultérieure.

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