SimpleX Chat: secure messenger 4+

Privacy redefined: no user IDs

SimpleX Chat

    • Free

iPhone Screenshots

Description

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 network 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:
- quantum resistant 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.
- 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.
- connect via one-time invitation links or via long-term public 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 quantum resistant 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 X/Twitter (@SimpleXChat), Reddit (r/SimpleXChat/) and Mastodon (https://mastodon.social/@simplex) for the latest updates.

What’s New

Version 6.1.1

New in v6.1.1:
- improved interface responsiveness.
- fixes: changing chat profile, importing themes in iOS 15, etc.

New in v6.1:

Better security.
SimpleX protocols reviewed by Trail of Bits.

Better calls.
You can switch audio and video during the call.

Better iOS notifications.
Improved delivery, reduced traffic usage.
More improvements are coming soon!

Better user experience:
- switch chat profile for 1-time invitations.
- customizable message shape.
- better message dates.
- forward up to 20 messages at once.
- delete or moderate up to 200 messages.

Read more: https://simplex.chat/blog/20241014-simplex-network-v6-1-security-review-better-calls-user-experience.html

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

Gunar100 ,

Jo Signal alternatíva

A tobb felhasználó mod tetszik, higy akar mindenkivel masikon lehet kommunikalni es a bejovo uzenetek, hivasok igy is megerkeznek mindrol! Igaz kicsit instabil idonkent, de remelem majd idovel ez is jobb lesz 👍

App Privacy

The developer, SimpleX Chat, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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