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Download SimpleX Chat 5.7.3 APK
Target: Android 13 (API 33)
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What's new in SimpleX Chat 5.7.3
v5.7.1-3 fixed:
- file download bugs.
- invitation link bugs.
- video calls.
New in v5.7 (build 200):
- quantum resistant e2e encryption in direct chats!
- forward messages and files, without revealing the source.
- calls: in-call sounds when connecting, support for bluetooth headphones.
- customizable shapes of profile images.
- more reliable network connection.
Read more: simplex.chat/blog/20240426-simplex-legally-binding-transparency-v5-7-better-user-experience.html
About SimpleX Chat 5.7.3
SimpleX - the first messaging platform that has no user identifiers of any kind - 100% private by design!
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Security assessment by Trail of Bits: 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 (github.com/simplex-chat/simplex-chat/issues)
Ream more about SimpleX Chat at simplex.chat
Get source code in our GitHub repo: github.com/simplex-chat/simplex-chat
Follow us on Reddit (r/SimpleXChat/), Twitter (@SimpleXChat) and Mastodon (mastodon.social/@simplex) for the latest updates.
SimpleX Chat 5.7.3 variants
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:5.7.3
Uploaded:May 18, 2024 at 8:32AM UTC
File size:60.14 MB
Downloads:10
Version:6.3.3
Uploaded:May 11, 2025 at 11:47PM UTC
File size:73.49 MB
Version:5.8.2(223) for Android 8.0+ (Oreo, API 26)
Uploaded:July 4, 2024 at 7:05PM UTC
File size:99.68 MB
Downloads:108
Version:5.8.1(221) for Android 8.0+ (Oreo, API 26)
Uploaded:June 27, 2024 at 8:40AM UTC
File size:99.38 MB
Downloads:22
Version:5.8(219) for Android 8.0+ (Oreo, API 26)
Uploaded:June 6, 2024 at 5:59AM UTC
File size:99.35 MB
Downloads:28
Version:5.7.5(216) for Android 8.0+ (Oreo, API 26)
Uploaded:June 3, 2024 at 6:55AM UTC
File size:97.22 MB
Downloads:9
Version:5.7.4(212) for Android 8.0+ (Oreo, API 26)
Uploaded:May 29, 2024 at 8:01AM UTC
File size:97.26 MB
Downloads:35
Version:5.7.3(206) for Android 8.0+ (Oreo, API 26)
Uploaded:May 16, 2024 at 8:03PM UTC
File size:97.19 MB
Downloads:39
Version:6.3.3
Uploaded:April 29, 2025 at 1:59PM UTC
File size:58.94 MB
Downloads:37
Version:6.3.2
Uploaded:April 16, 2025 at 1:55PM UTC
File size:58.89 MB
Downloads:13
Version:6.3.1
Uploaded:April 6, 2025 at 9:12AM UTC
File size:58.89 MB
Downloads:10
Version:6.3
Uploaded:March 26, 2025 at 2:24PM UTC
File size:58.91 MB
Downloads:5
Version:5.8.2
Uploaded:July 4, 2024 at 7:05PM UTC
File size:99.68 MB
Downloads:108
Version:5.8.1
Uploaded:June 27, 2024 at 8:40AM UTC
File size:99.38 MB
Downloads:22
Version:5.8
Uploaded:June 6, 2024 at 5:59AM UTC
File size:99.35 MB
Downloads:28
Version:5.7.5
Uploaded:June 3, 2024 at 6:55AM UTC
File size:97.22 MB
Downloads:9
Version:5.7.4
Uploaded:May 29, 2024 at 8:01AM UTC
File size:97.26 MB
Downloads:35
Version:5.7.3
Uploaded:May 16, 2024 at 8:03PM UTC
File size:97.19 MB
Downloads:39
