SimpleX Chat

SimpleX (Package Name: chat.simplex.app) is developed by SimpleX Chat and the latest version of SimpleX Chat 6.5 was updated on April 30, 2026. SimpleX Chat is in the category of Communication. You can check all apps from the developer of SimpleX Chat. Currently this app is for free. This app can be downloaded on Android 8.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.

SimpleX - the first messaging platform that has no user identifiers of any kind - 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.
- NEW message reactions.
- NEW delivery receipts, with opt-out per contact.
- 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 it 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).
- private instant notifications.
- encrypted portable chat database - you can transfer your chat contacts and history to another device.
- 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)
Read 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.

SimpleX 6.5 Update

New in v6.5.
Public channels - speak freely!
- Reliability: many relays per channel.
- Ownership: you can run your own relays.
- Security: owners hold channel keys.
- Privacy: for owners and subscribers.
Easier to invite your friends: we made connecting simpler for new users.
Safe web links: opt-in to send link previews.
Non-profit governance: to make SimpleX Network last.
Read more: https://simplex.chat/blog/20260430-simplex-channels-v6-5-consortium-crowdfunding-freedom-of-speech.html