Delta Chat
Chat over e-mail
Free
1.44.1for iPhone, iPad and more
Age Rating
Delta Chat Screenshots
About Delta Chat
Delta Chat is a messenger that uses the largest, most diverse and decentralized communication system ever created: the existing e-mail server network. Just use your standard e-mail account and start chatting with any of your e-mail contacts, whether they have installed Delta Chat or not.
Technically, Delta Chat is an e-mail application but with a modern chat interface. E-Mail in a new dress if you will. Chat and contact data remain on your devices. No uploads or centralized control of addressbook, calendar or other personal data. There simply are no Delta Chat servers where anything could be uploaded to.
Use Delta Chat with anyone out of billions of people: just use their e-mail address. Recipients will see a simple e-mail and may directly reply with their own e-mail app. They don't need to install Delta Chat, visit websites or sign up anywhere. If you send a picture or other media to a chat group your chat recipients will see a nice regular e-mail with an attachment. If they send a message and attachments back, you will see the media in your chat for this contact.
Delta Chat sends e-mails using your e-mail account and provider of choice. You can change mobile numbers without any trouble or even work without any SIM card or phone number at all. End-to-end encryption is established automatically when chat partners start communicating with each other.
Delta Chat is a relatively young project, but already has a lot to offer. It employs a pragmatic and usability-driven approach to decentralized messaging. No re-inventing of wheels unless one of them causes actual trouble or concern. We rather often think about removing technology than adding yet more of it, trying to keep things maintainable and understandable for us and others. Most popular programming languages and many human languages are involved in the development of Delta Chat apps and the various activities around it.
We are grateful for any help, be it contributing good bug reports, helping other users on the forum, participating in our open development with PRs and reviews, translations to more languages, working on new bots or setting up new experimental mail servers.
Technically, Delta Chat is an e-mail application but with a modern chat interface. E-Mail in a new dress if you will. Chat and contact data remain on your devices. No uploads or centralized control of addressbook, calendar or other personal data. There simply are no Delta Chat servers where anything could be uploaded to.
Use Delta Chat with anyone out of billions of people: just use their e-mail address. Recipients will see a simple e-mail and may directly reply with their own e-mail app. They don't need to install Delta Chat, visit websites or sign up anywhere. If you send a picture or other media to a chat group your chat recipients will see a nice regular e-mail with an attachment. If they send a message and attachments back, you will see the media in your chat for this contact.
Delta Chat sends e-mails using your e-mail account and provider of choice. You can change mobile numbers without any trouble or even work without any SIM card or phone number at all. End-to-end encryption is established automatically when chat partners start communicating with each other.
Delta Chat is a relatively young project, but already has a lot to offer. It employs a pragmatic and usability-driven approach to decentralized messaging. No re-inventing of wheels unless one of them causes actual trouble or concern. We rather often think about removing technology than adding yet more of it, trying to keep things maintainable and understandable for us and others. Most popular programming languages and many human languages are involved in the development of Delta Chat apps and the various activities around it.
We are grateful for any help, be it contributing good bug reports, helping other users on the forum, participating in our open development with PRs and reviews, translations to more languages, working on new bots or setting up new experimental mail servers.
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What's New in the Latest Version 1.44.1
Last updated on Mar 28, 2024
Old Versions
* show message content in notifications (previews are generated end-to-end-encrypted on the device and can be disabled in the system settings)
* summaries use emojis for attachment type
* "Message long-tap / Select More" added for read-only chats
* paste QR codes from any QR code page
* fix: open chats directly at the end, no more visible scrolling
* fix input bar displayed during attach or info sometimes
* fix: add white background to transparent avatars
* fix crashes when exporting or importing huge accounts
* fix: remove leading whitespace from subject
* fix problem with sharing the same key by several accounts
* fix remote group membership changes always overriding local ones
* summaries use emojis for attachment type
* "Message long-tap / Select More" added for read-only chats
* paste QR codes from any QR code page
* fix: open chats directly at the end, no more visible scrolling
* fix input bar displayed during attach or info sometimes
* fix: add white background to transparent avatars
* fix crashes when exporting or importing huge accounts
* fix: remove leading whitespace from subject
* fix problem with sharing the same key by several accounts
* fix remote group membership changes always overriding local ones
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Version History
1.44.1
Mar 28, 2024
* show message content in notifications (previews are generated end-to-end-encrypted on the device and can be disabled in the system settings)
* summaries use emojis for attachment type
* "Message long-tap / Select More" added for read-only chats
* paste QR codes from any QR code page
* fix: open chats directly at the end, no more visible scrolling
* fix input bar displayed during attach or info sometimes
* fix: add white background to transparent avatars
* fix crashes when exporting or importing huge accounts
* fix: remove leading whitespace from subject
* fix problem with sharing the same key by several accounts
* fix remote group membership changes always overriding local ones
* summaries use emojis for attachment type
* "Message long-tap / Select More" added for read-only chats
* paste QR codes from any QR code page
* fix: open chats directly at the end, no more visible scrolling
* fix input bar displayed during attach or info sometimes
* fix: add white background to transparent avatars
* fix crashes when exporting or importing huge accounts
* fix: remove leading whitespace from subject
* fix problem with sharing the same key by several accounts
* fix remote group membership changes always overriding local ones
1.44.0
Mar 9, 2024
- react with any Emoji to a message
- enlarge the account switcher by swiping up
- offer "Select more" in read-only chats as well
- sync self-avatar and self-signature text across devices
- bug fixes
- enlarge the account switcher by swiping up
- offer "Select more" in read-only chats as well
- sync self-avatar and self-signature text across devices
- bug fixes
v1.42.8
Dec 19, 2023
* fix checking for new messages in the background being aborted before finishing fetching the messages
* fix: sync pin/archive across devices also for groups created by non-delta-chats clients
* fix: show padlock in empty part if the whole message is empty
* fix: more reliable message pushing from IMAP implementations as mailbox.org (renew IDLE timeout on keepalives and reduce it to 5 minutes)
* update translations
* fix: sync pin/archive across devices also for groups created by non-delta-chats clients
* fix: show padlock in empty part if the whole message is empty
* fix: more reliable message pushing from IMAP implementations as mailbox.org (renew IDLE timeout on keepalives and reduce it to 5 minutes)
* update translations
1.42.7
Dec 11, 2023
* fix: immediate feedback when tapping chat titles
* fix crashes and notification issues due to races in shutdown event handler
* fix crashes and notification issues due to account lock file
* fix crashes and notification issues by fading out "encrypted database" experiment introduced in 1.28.0
(database is still encrypted by the system, for existing "encrypted database" users a messages is shown)
* fix: align "Disappearing Messages" options with the ones used on other systems
* fix decryption errors when using multiple private keys
* fix more log in errors for providers as 163.com; this was introduced in 1.42.3
* sync changes on "Your Profile Name", "Show Class Mails", "Read Receipts" options across devices
* fix crashes and notification issues due to races in shutdown event handler
* fix crashes and notification issues due to account lock file
* fix crashes and notification issues by fading out "encrypted database" experiment introduced in 1.28.0
(database is still encrypted by the system, for existing "encrypted database" users a messages is shown)
* fix: align "Disappearing Messages" options with the ones used on other systems
* fix decryption errors when using multiple private keys
* fix more log in errors for providers as 163.com; this was introduced in 1.42.3
* sync changes on "Your Profile Name", "Show Class Mails", "Read Receipts" options across devices
1.42.4
Nov 25, 2023
* fix possibly infinte IMAP loop on some providers; this was introduced in 1.42.3
* fix log in error on some providers as 163.com; this was introduced in 1.42.3
* fix: do not allow swipe-to-reply on daymarkers or other markers
* fix instructions for how to play unsupported video formats
* fix log in error on some providers as 163.com; this was introduced in 1.42.3
* fix: do not allow swipe-to-reply on daymarkers or other markers
* fix instructions for how to play unsupported video formats
1.42.3
Nov 23, 2023
- one-to-one chats guarantee end-to-end encryption for contacts with a green checkmark now
- for everyone's simplicity, we also mark these chats with green checkmarks
- groups are created automatically with guaranteed end-to-end encryption if possible
- Accept/Blocked, Archived, Pinned, Mute is synced across all your devices
- for everyone's simplicity, we also mark these chats with green checkmarks
- groups are created automatically with guaranteed end-to-end encryption if possible
- Accept/Blocked, Archived, Pinned, Mute is synced across all your devices
1.40.3
Oct 10, 2023
* fix a crash when opening the connectivity view on newer iOS versions
* update libwebp and other libs
* remove meet.jit.si from default video chat instances as it requires login now
* minimum system version is iOS 12 now
* update libwebp and other libs
* remove meet.jit.si from default video chat instances as it requires login now
* minimum system version is iOS 12 now
1.40.2
Oct 6, 2023
* update libwebp and other libs
* remove meet.jit.si from default video chat instances as it requires login now
* update translations
* remove meet.jit.si from default video chat instances as it requires login now
* update translations
1.40.0
Aug 12, 2023
* improve IMAP logs
* update "verified icon"
* add Luri Bakhtiari translation, update other translations
* bug fixes
* update "verified icon"
* add Luri Bakhtiari translation, update other translations
* bug fixes
1.38.2
Jun 23, 2023
* view "All Media" of all chats by the corresponding button
* new "Clear Chat" option in the profiles
* remove upper size limit of attachments
* save local storage: compress HTML emails in the database
* save traffic and storage: recode large PNG and other supported image formats (large JPEG were always recoded; images send as "File" are still not recorded or changed otherwise)
* also strip metadata from images before sending in case they're already small enough and do not require recoding
* improve group membership consistency
* accessibility: adaptive fonts in the welcome screen
* new "Clear Chat" option in the profiles
* remove upper size limit of attachments
* save local storage: compress HTML emails in the database
* save traffic and storage: recode large PNG and other supported image formats (large JPEG were always recoded; images send as "File" are still not recorded or changed otherwise)
* also strip metadata from images before sending in case they're already small enough and do not require recoding
* improve group membership consistency
* accessibility: adaptive fonts in the welcome screen
1.36.4
May 1, 2023
* add "Paste From Clipboard" to QR code scanner
* fix fetch errors due to erroneous EOF detection in long IMAP responses
* fix crash in search when using the app on macos
* update translations and local help
* fix fetch errors due to erroneous EOF detection in long IMAP responses
* fix crash in search when using the app on macos
* update translations and local help
1.36.1
Apr 5, 2023
* new, easy method of adding a second device to your account: scan the QR code shown at "Settings / Add Second Device" with your new device
* revamped settings dialog
* show non-deltachat emails by default for new installations (you can change this at "Settings / Chats and Media)
* resilience against outages by caching DNS results for SMTP connections (IMAP connections are already cached since 1.34.11)
* make better use of dark/light mode in "Show full message"
* prefer TLS over STARTTLS during autoconfiguration, set minimum TLS version to 1.2
* use SOCKS5 configuration also for HTTP requests
* improve speed by reorganizing the database connection pool
* improve speed by decrypting messages in parallel
* improve reliability by using read/write instead of per-command timeouts for SMTP
* improve reliability by closing databases sooner
* improve compatibility with encrypted messages from non-deltachat clients
* add menu with links to issues reporting and more to help
* fix: update mute icon in chat's title
* fix: Skip "Show full message" if the additional text is only a footer already shown in the profile
* fix verifications when using for multiple devices
* fix backup imports for backups seemingly work at first
* fix a problem with gmail where (auto-)deleted messages would get archived instead of deleted
* fix deletion of more than 32000 messages at the same time
* update provider database
* update translations
* revamped settings dialog
* show non-deltachat emails by default for new installations (you can change this at "Settings / Chats and Media)
* resilience against outages by caching DNS results for SMTP connections (IMAP connections are already cached since 1.34.11)
* make better use of dark/light mode in "Show full message"
* prefer TLS over STARTTLS during autoconfiguration, set minimum TLS version to 1.2
* use SOCKS5 configuration also for HTTP requests
* improve speed by reorganizing the database connection pool
* improve speed by decrypting messages in parallel
* improve reliability by using read/write instead of per-command timeouts for SMTP
* improve reliability by closing databases sooner
* improve compatibility with encrypted messages from non-deltachat clients
* add menu with links to issues reporting and more to help
* fix: update mute icon in chat's title
* fix: Skip "Show full message" if the additional text is only a footer already shown in the profile
* fix verifications when using for multiple devices
* fix backup imports for backups seemingly work at first
* fix a problem with gmail where (auto-)deleted messages would get archived instead of deleted
* fix deletion of more than 32000 messages at the same time
* update provider database
* update translations
1.34.12
Feb 21, 2023
* introduce DNS cache: if DNS stops working on a network, Delta Chat will still be able to connect to IMAP by using previous IP addresses
* show a dialog on backup success
* allow OGG attachments being shared to apps that can handle them
* add "Copy to Clipboard" option for mailing list addresses
* fix wrong counters shown in gallery sometimes
* fix various bugs and improve logging
* update translations
* show a dialog on backup success
* allow OGG attachments being shared to apps that can handle them
* add "Copy to Clipboard" option for mailing list addresses
* fix wrong counters shown in gallery sometimes
* fix various bugs and improve logging
* update translations
1.34.10
Jan 17, 2023
* fix: make archived chats visible that don't get unarchived automatically (muted chats): add an unread counter and move the archive to the top
* fix: send AVIF, HEIC, TXT, PPT, XLS, XML files as such
* fix: trigger reconnection when failing to fetch existing messages
* fix: do not retry fetching existing messages after failure, prevents infinite reconnection loop
* fix: do not add an error if the message is encrypted but not signed
* fix: do not strip leading spaces from message lines
* fix corner cases on sending quoted texts
* fix STARTTLS connection
* fix: do not treat invalid email addresses as an exception
* fix: flush relative database paths introduced in 1.34.8 in time
* faster updates of chat lists and contact list
* update translations
* fix: send AVIF, HEIC, TXT, PPT, XLS, XML files as such
* fix: trigger reconnection when failing to fetch existing messages
* fix: do not retry fetching existing messages after failure, prevents infinite reconnection loop
* fix: do not add an error if the message is encrypted but not signed
* fix: do not strip leading spaces from message lines
* fix corner cases on sending quoted texts
* fix STARTTLS connection
* fix: do not treat invalid email addresses as an exception
* fix: flush relative database paths introduced in 1.34.8 in time
* faster updates of chat lists and contact list
* update translations
1.34.8
Jan 2, 2023
* improve account switcher: use the icon atop the chatlist to switch, add and edit accounts
* allow removal of references contacts from the "New Chat" list
* VoiceOver: read out unread messages in account switch button and account switch view controller
* VoiceOver: improve order of read out content in chatlist
* VoiceOver: improve navigating through messages
* If a classical-email-user sends an email to a group and adds new recipients, the new recipients will become group members
* treat attached PGP keys from classical-email-user as a signal to prefer mutual encryption
* treat encrypted or signed messages from classical-email-user as a signal to prefer mutual encryption
* fixes
* allow removal of references contacts from the "New Chat" list
* VoiceOver: read out unread messages in account switch button and account switch view controller
* VoiceOver: improve order of read out content in chatlist
* VoiceOver: improve navigating through messages
* If a classical-email-user sends an email to a group and adds new recipients, the new recipients will become group members
* treat attached PGP keys from classical-email-user as a signal to prefer mutual encryption
* treat encrypted or signed messages from classical-email-user as a signal to prefer mutual encryption
* fixes
1.34.1
Oct 11, 2022
* show the currently selected account in the chatlist; a tap on it shows the account selector dialog
* show a "recently seen" dot on avatars if the contact was seen within ten minutes
* order contact and members lists by "last seen"
* support drag'n'drop to delta chat: eg. long tap an image from the system gallery and _with a second finger_ navigate to Delta Chat and then to the desired chat
* improve multi-select of messages: add "Copy to Clipboard", show selection count
* allow resending of messages from multi-select
* backup import: allow selection of different backups by a file selector
* show mailing list addresses in profile
* user friendlier system messages as "You changed the group image."
* allow replying with a voice message
* connectivity view shows disabled "Low Data Mode"/"Low Power Mode" as possible cause of problems
* truncate incoming messages by lines instead of just length
* for easier multi device setup, "Send Copy To Self" is enabled by default now
* bigger avatar in message view title
* larger, easier to tap search and mute buttons in profiles
* update translations
* show a "recently seen" dot on avatars if the contact was seen within ten minutes
* order contact and members lists by "last seen"
* support drag'n'drop to delta chat: eg. long tap an image from the system gallery and _with a second finger_ navigate to Delta Chat and then to the desired chat
* improve multi-select of messages: add "Copy to Clipboard", show selection count
* allow resending of messages from multi-select
* backup import: allow selection of different backups by a file selector
* show mailing list addresses in profile
* user friendlier system messages as "You changed the group image."
* allow replying with a voice message
* connectivity view shows disabled "Low Data Mode"/"Low Power Mode" as possible cause of problems
* truncate incoming messages by lines instead of just length
* for easier multi device setup, "Send Copy To Self" is enabled by default now
* bigger avatar in message view title
* larger, easier to tap search and mute buttons in profiles
* update translations
1.32.0
Aug 6, 2022
* show post address in mailinglist's profile
* allow automatic address porting in verified groups
* fix openening experimental encrypted accounts
* fix: better information on several configuration and non-delivery errors
* fix accessibility hint in multi-select chat list title
* updated translations
* allow automatic address porting in verified groups
* fix openening experimental encrypted accounts
* fix: better information on several configuration and non-delivery errors
* fix accessibility hint in multi-select chat list title
* updated translations
1.30.1
May 17, 2022
* improve voice-over navigation
* speed up loading of chat messages by a factor of 20
* speed up finding the correct server after logging in
* speed up marking messages as being seen and use fewer network data by batch processing
* speed up messages deletion and use fewer network data for that
* speed up message receiving a bit
* speed up various parts by caching config values
* speed up chat list loading massively
* speed up checking for new messages in background
* archived+muted chats are no longer unarchived when new messages arrive; this behavior is also known by other messengers
* lots of bug fixes
* add finnish translation, update other translations
* update provider database
* speed up loading of chat messages by a factor of 20
* speed up finding the correct server after logging in
* speed up marking messages as being seen and use fewer network data by batch processing
* speed up messages deletion and use fewer network data for that
* speed up message receiving a bit
* speed up various parts by caching config values
* speed up chat list loading massively
* speed up checking for new messages in background
* archived+muted chats are no longer unarchived when new messages arrive; this behavior is also known by other messengers
* lots of bug fixes
* add finnish translation, update other translations
* update provider database
1.28.1
Feb 7, 2022
* add writing support for supported mailinglist types; other mailinglist types stay read-only
* add an option to define a background image that is used in all chats then :)
* "Message Info" show routes
* add option "Your Profile Info / Password and Account / Only Fetch from DeltaChat Folder"; this is useful if you can configure your server to move chat messages to the DeltaChat folder
* add "Search" and "Mute" as separate buttons to the chat profiles
* the connectivity status now also shows if notifications work as expected
* improve accessibility for the chat requests button bar
* semi-transparent chat input bar at the bottom of the chat view
* show chat title in delete confirmation dialog
* speed up opening chats
* explicit "Watch Inbox folder" and "Watch DeltaChat folder" settings no longer required; the folders are watched automatically as needed
* to safe traffic and connections, "Advanced / Watch Sent Folder" is disabled by default; as all other IMAP folders, the folder is still checked on a regular base
* new option to keep your contacts, encryption secrets and text messages encrypted on your device. Only available on account creation and importing backup files.
* detect correctly signed messages from Thunderbird and show them as such
* synchronize Seen status across devices
* more reliable group memberlist and group avatar updates
* recognize MS Exchange read receipts as such
* fix leaving groups
* fix unread count issues in account switcher
* fix scroll-down button for chat requests
* fix layout issues of the chat message input bar in phone's landscape orientation
* add Bulgarian translations, update other translations and local help
* add an option to define a background image that is used in all chats then :)
* "Message Info" show routes
* add option "Your Profile Info / Password and Account / Only Fetch from DeltaChat Folder"; this is useful if you can configure your server to move chat messages to the DeltaChat folder
* add "Search" and "Mute" as separate buttons to the chat profiles
* the connectivity status now also shows if notifications work as expected
* improve accessibility for the chat requests button bar
* semi-transparent chat input bar at the bottom of the chat view
* show chat title in delete confirmation dialog
* speed up opening chats
* explicit "Watch Inbox folder" and "Watch DeltaChat folder" settings no longer required; the folders are watched automatically as needed
* to safe traffic and connections, "Advanced / Watch Sent Folder" is disabled by default; as all other IMAP folders, the folder is still checked on a regular base
* new option to keep your contacts, encryption secrets and text messages encrypted on your device. Only available on account creation and importing backup files.
* detect correctly signed messages from Thunderbird and show them as such
* synchronize Seen status across devices
* more reliable group memberlist and group avatar updates
* recognize MS Exchange read receipts as such
* fix leaving groups
* fix unread count issues in account switcher
* fix scroll-down button for chat requests
* fix layout issues of the chat message input bar in phone's landscape orientation
* add Bulgarian translations, update other translations and local help
1.26.2
Dec 4, 2021
* re-layout all QR codes and unify appearance among the different platforms
* show when a contact was "Last seen" in the contact's profile
* group creation: skip presetting a draft that is deleted most times anyway
* auto-generated avatars are displayed similar across all platforms now
* speed up returning to chat list
* fix chat assignment when forwarding
* fix group-related system messages appearing as normal messages in multi-device setups
* fix removing members if the corresponding messages arrive disordered
* fix potential issue with disappearing avatars on downgrades
* update translations
* show when a contact was "Last seen" in the contact's profile
* group creation: skip presetting a draft that is deleted most times anyway
* auto-generated avatars are displayed similar across all platforms now
* speed up returning to chat list
* fix chat assignment when forwarding
* fix group-related system messages appearing as normal messages in multi-device setups
* fix removing members if the corresponding messages arrive disordered
* fix potential issue with disappearing avatars on downgrades
* update translations
1.24.5
Nov 22, 2021
* new "In-Chat Search" added; tap the corresponding option in the profile
* new option "Auto-Download Messages": Define the max. messages size to be downloaded automatically - larger messages, as videos or large images, can be downloaded manually by a simple tap then
* much easier joining of groups via qr-code: nothing blocks and you get all progress information in the immediately created group
* get warnings before your server runs out of space (if quota is supported by your provider)
* messages are marked as "being read" already when the first recipient opened the message (before, that requires 50% of the recipients to open the message)
* contact requests are notified as usual now
* add an option to copy a contact's email address to the clipboard
* force strict certificate checks when a strict certificate was seen on first login
* do not forward group names on forwarding messages
* bug fixes, updated translations and more
* new option "Auto-Download Messages": Define the max. messages size to be downloaded automatically - larger messages, as videos or large images, can be downloaded manually by a simple tap then
* much easier joining of groups via qr-code: nothing blocks and you get all progress information in the immediately created group
* get warnings before your server runs out of space (if quota is supported by your provider)
* messages are marked as "being read" already when the first recipient opened the message (before, that requires 50% of the recipients to open the message)
* contact requests are notified as usual now
* add an option to copy a contact's email address to the clipboard
* force strict certificate checks when a strict certificate was seen on first login
* do not forward group names on forwarding messages
* bug fixes, updated translations and more
1.22.1
Aug 26, 2021
* added: multi-account functionality: add and switch accounts from the settings
* added: every new "contact request" is shown as a separate chat now,
you can block or accept or archive or pin them
(old contact requests are available in "Archived Chats")
* added: the title bar shows if the app is not connected
* added: a tap in the title bar shows connectivity details (also available in settings)
* added: allow defining a video chat instance (eg. any jitsi instance)
* added: send video chat invites
* added: receive video chat invites as such
* added: offer a button for quick scrolling down in a chat
* added: connectivity view shows quota information, if supported by the provider
* deactivate and reactivate your own QR codes by just scanning them
* quotes can now refer messages from other chats
* do not show signature in "Saved Messages"
* revert sharing webp files as stickers
* fix forwarding mails containing only quotes
* fix ordering of some system messages
* fix handling of gmail labels
* fix acceping mailing lists
* fix date labels stuck in the seventies sometimes
* fix "show in chat"
* fix sharing issues
* fix: crash in gallery
* fix message input bar and share layout for iPad
* fix: keep keyboard open after cancelling drafts and quotes
* fix displaying of small images
* fix more scrolling issues
* update translations and provider database
* added: every new "contact request" is shown as a separate chat now,
you can block or accept or archive or pin them
(old contact requests are available in "Archived Chats")
* added: the title bar shows if the app is not connected
* added: a tap in the title bar shows connectivity details (also available in settings)
* added: allow defining a video chat instance (eg. any jitsi instance)
* added: send video chat invites
* added: receive video chat invites as such
* added: offer a button for quick scrolling down in a chat
* added: connectivity view shows quota information, if supported by the provider
* deactivate and reactivate your own QR codes by just scanning them
* quotes can now refer messages from other chats
* do not show signature in "Saved Messages"
* revert sharing webp files as stickers
* fix forwarding mails containing only quotes
* fix ordering of some system messages
* fix handling of gmail labels
* fix acceping mailing lists
* fix date labels stuck in the seventies sometimes
* fix "show in chat"
* fix sharing issues
* fix: crash in gallery
* fix message input bar and share layout for iPad
* fix: keep keyboard open after cancelling drafts and quotes
* fix displaying of small images
* fix more scrolling issues
* update translations and provider database
1.20.5
Jun 13, 2021
* show status/footer messages in contact profiles
* show stickers as such
* send memojis as stickers
* open chat at the first unread message
* fix downscaling images
* fix outgoing messages popping up in "Saved messages" for some providers
* fix: do not allow deleting contacts with ongoing chats
* fix: ignore drafts folder when scanning
* fix: scan folders also when inbox is not watched
* fix scrolling issues
* fix: not not stack chats on tapping notifications
* fix: show warning if camera access is denied
* fix: do not hide keyboard after sending a message
* fix: hide keyboard when tapping on a search result
* improve error handling and logging
* update translations, local help and provider database
* show stickers as such
* send memojis as stickers
* open chat at the first unread message
* fix downscaling images
* fix outgoing messages popping up in "Saved messages" for some providers
* fix: do not allow deleting contacts with ongoing chats
* fix: ignore drafts folder when scanning
* fix: scan folders also when inbox is not watched
* fix scrolling issues
* fix: not not stack chats on tapping notifications
* fix: show warning if camera access is denied
* fix: do not hide keyboard after sending a message
* fix: hide keyboard when tapping on a search result
* improve error handling and logging
* update translations, local help and provider database
1.20.4
May 30, 2021
* new mailinglist and better bot support
* improve e-mail compatibility
* improve compatibility with Outlook.com
* show answers to generic support-addresses as info@company.com in context
* show total playback time of audio files before starting playback
* more reliable notifications about every 20 minutes, typically faster
* tapping notification opens the corresponding chat
* show multiple notifications
* group notifications by chats
* more information and images shown in notifications
* add option to view original-/html-mails
* allow dialing on tapping a phone number
* opening the contact request chat marks all contact requests as noticed and removes the sticky hint from the chatlist
* if "Show classic mails" is enabled the contact request hint in the corresponding chat
* make log accessible on configure at "Log in to your Server / Advanced"
* various speed improvements
* export backups as .tar files
* enable strict TLS for known providers by default
* lots of bug fixes
* add Czech, Khmer, Persian, Arabic, Kurdish, Sardinian translations, update other translations
* add Chinese, Czech, French, Indonesian, Polish and Ukrainian local help, update other local help
* improve e-mail compatibility
* improve compatibility with Outlook.com
* show answers to generic support-addresses as info@company.com in context
* show total playback time of audio files before starting playback
* more reliable notifications about every 20 minutes, typically faster
* tapping notification opens the corresponding chat
* show multiple notifications
* group notifications by chats
* more information and images shown in notifications
* add option to view original-/html-mails
* allow dialing on tapping a phone number
* opening the contact request chat marks all contact requests as noticed and removes the sticky hint from the chatlist
* if "Show classic mails" is enabled the contact request hint in the corresponding chat
* make log accessible on configure at "Log in to your Server / Advanced"
* various speed improvements
* export backups as .tar files
* enable strict TLS for known providers by default
* lots of bug fixes
* add Czech, Khmer, Persian, Arabic, Kurdish, Sardinian translations, update other translations
* add Chinese, Czech, French, Indonesian, Polish and Ukrainian local help, update other local help
1.16.0
Feb 4, 2021
* new staging area: images and other files can be reviewed and sent together with a description now
* show in chat: go to the the corresponding message directly from images or documents in the gallery
* new, redesigned context menus in chat, gallery and document view - long-tap a message to feel the difference
* multi-select in chat: long-tap a message and select more messages for deletion or forwarding
* improve several accessibility items and texts
* improve keyboard layouts
* fix: profile images can now always be cropped after selection
* fix: hints in empty chats are no longer truncated
* fix swipe-to-reply icon for iOS 11 and 12
* update translations and local help
* show in chat: go to the the corresponding message directly from images or documents in the gallery
* new, redesigned context menus in chat, gallery and document view - long-tap a message to feel the difference
* multi-select in chat: long-tap a message and select more messages for deletion or forwarding
* improve several accessibility items and texts
* improve keyboard layouts
* fix: profile images can now always be cropped after selection
* fix: hints in empty chats are no longer truncated
* fix swipe-to-reply icon for iOS 11 and 12
* update translations and local help
Delta Chat FAQ
Click here to learn how to download Delta Chat in restricted country or region.
Check the following list to see the minimum requirements of Delta Chat.
iPhone
Requires iOS 12.0 or later.
iPad
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
Delta Chat supports English, Albanian, Arabic, Azerbaijani, Bakhtiari, Basque, Bulgarian, Cambodian, Catalan, Central Kurdish, Croatian, Czech, Danish, Dutch, Esperanto, Finnish, French, Galician, German, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Sardinian, Serbian, Simplified Chinese, Slovak, Spanish, Swedish, Tamil, Telugu, Traditional Chinese, Turkish, Ukrainian, Vietnamese
