SimpleX Chat: secure messenger 5.6.1 - App Store

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About SimpleX Chat: secure messenger

SimpleX Chat - a private & encrypted open-source messenger without any user IDs (not even random ones)! To send messages, make a private connection via link or QR code. SimpleX - the first messaging platform without user i

SimpleX Chat - a private & encrypted open-source messenger without any user IDs (not even random ones)!

To send messages, make a private connection via link or QR code.

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 [email protected] 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.

Apr 5, 2024
Version 5.6.1
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

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Previous Versions

Here you can find the changelog of SimpleX Chat: secure messenger since it was posted on our website on 2023-06-21 08:40:05. The latest version is 5.6.1 and it was updated on 2024-04-19 19:43:10. See below the changes in each version.

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