SimpleX

simplex.chat
SimpleX Icon

Simplex is gaining popularity as a secure and private messaging app renowned for its robust encryption protocol without user IDs or phone numbers and this improves your privacy. Simplex offers instant messaging, supports media attachments and voice and video calls. Additionally, it is cross-platform, open-source, and completely free, aligning with the modern user's preferences for convenience, security, and accessibility. Learn more about the Security Policy.

Open Source

SimpleX Privacy Policy

Privacy Policy Summary

  • The service is provided 'as is' and to be used at your sole risk
  • The service provider makes no warranty regarding uninterrupted, timely, secure or error-free service
  • This service is only available to users over a certain age
  • Instead of asking directly, this Service will assume your consent to changes of terms merely from your usage.
  • This service gives your personal data to third parties involved in its operation
  • User-generated content is encrypted, and this service cannot decrypt it
  • Your personal data is used for limited purposes
  • Features of the website are made available under a free software license
  • They may stop providing the service at any time
  • The court of law governing the terms is in England and Wales
  • This service assumes no liability for any losses or damages resulting from any matter relating to the service
  • A free help desk is provided
  • Information is provided about security practices
  • Information is provided about what kind of information they collect
  • Your personal data is not sold
  • You agree to indemnify and hold the service harmless in case of a claim related to your use of the service
  • There is a date of the last update of the agreements
  • This service informs you that its Terms of Service does not apply to third party websites
  • You have the right to leave this service at any time

Score

B

Documents

About the Data

This data is kindly provided by tosdr.org. Read full report at: #7638

SimpleX Source Code

Author

simplex-chat

Description

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!

#chat#double-ratchet#e2ee#encryption#haskell#messaging#privacy#protocol#security

Homepage

https://simplex.chat

License

AGPL-3.0

Created

21 Dec 19

Last Updated

26 Feb 26

Latest version

v6.5.0-beta.5

Primary Language

Haskell

Size

343,600 KB

Stars

10,523

Forks

569

Watchers

10,523

Language Usage

Language Usage

Star History

Star History

Recent Commits

  • Evgeny Poberezkin (29 Jan 26)

    v6.4.10: android 333, desktop 130

  • Evgeny Poberezkin (29 Jan 26)

    ios: 6.4.10 (build 320)

  • Evgeny Poberezkin (28 Jan 26)

    core: 6.4.10.0 (simplexmq 6.4.8.0)

  • Evgeny (28 Jan 26)

    core: improve error handling (#6602) * core: improve error handling * simplexmq

  • sh (21 Jan 26)

    multiplatform: stop video playback when swiping away (#6588) * android/build.gralde.kts: add JAVA_HOME to PATH * fullScreenView: dispose player.stop when view changes * fullScreenView: stop the video playback midway swipe Previously, video playback stopped **only** when screen was fully swiped away to next item. * ImageFullScreenView: simplify * revert back VideoView

  • Evgeny (15 Jan 26)

    multiplatform/common: catch every exception at base64ToBitmap (#6576) Co-authored-by: shum <github.shum@liber.li>

  • Evgeny Poberezkin (29 Dec 25)

    docs: update XMR donations address

  • Evgeny Poberezkin (23 Dec 25)

    ios: 6.4.9 (build 317)

  • Evgeny Poberezkin (23 Dec 25)

    core: 6.4.9.0

  • Evgeny (23 Dec 25)

    core: update simplexmq (support any 127.x.x.x address as loopback), show other addresses in CLI during remote connection, update tests (#6526)

  • Evgeny (22 Dec 25)

    ios: fix new chat sheet closing on new message in iOS 26 (#6525)

  • sh (14 Oct 25)

    github/workflows: macos-13 -> macos-15-intel (#6362)

  • Evgeny Poberezkin (10 Dec 25)

    v6.4.8: android 328, desktop 125

  • Evgeny Poberezkin (10 Dec 25)

    ios: 6.4.8 (build 314)

  • Evgeny Poberezkin (10 Dec 25)

    ios: update core library

  • Evgeny Poberezkin (10 Dec 25)

    core: 6.4.8.0

  • Evgeny (10 Dec 25)

    desktop: fix linking mobile and connecting after onboarding. Also fixes other cases when core controller changes in android/desktop. (#6489)

  • sh (03 Dec 25)

    ci: execute reproducible script from tag (#6485) * ci: execute reproducible script from tag * ci: target our repository tags

  • sh (02 Dec 25)

    ci: add cli deb and fix formatting to reproducible-builds (#6483) * scripts/reproducible-builds: add cli deb and fix formatting * scripts/reproducible-builds: properly strip v from tag

  • sh (01 Dec 25)

    ci: build simplex-chat CLI deb package (#6474) * ci: build simplex-chat CLI deb package * scripts/build-cli-deb: reproducible size (also actual file size) * scripts/build-cli-deb: fix epoch * scripts/build-cli-deb: set epoch to 1764547200

  • Evgeny (25 Nov 25)

    ios: reduce memory used by iOS share extension (#6465)

  • sh (25 Nov 25)

    tests: skip multicast discovery in Mac CI (#6458) * tests: skip multicast discovery in Mac CI * tests: remove unneeded xitMacCI''

  • sh (20 Nov 25)

    ci/reproducible builds: pin Java version (#6447) * ci/reproducible builds: pin Java version * ci/reproducible builds: fix aarch64 builds * ci/reproducible builds: chech java hash

  • BarbossHack (17 Nov 25)

    ci: free up disk space before executing reproducible script (#6441) * ci: free up disk space before executing reproducible script * ci: use cleanup script template instead Co-authored-by: sh <37271604+shumvgolove@users.noreply.github.com> --------- Co-authored-by: sh <37271604+shumvgolove@users.noreply.github.com>

  • sh (03 Nov 25)

    readme: switch image links to bypass CORS/ORB (#6418)

  • Evgeny Poberezkin (02 Nov 25)

    v6.4.7: ios 311

  • Evgeny Poberezkin (02 Nov 25)

    v6.4.7: android 325 (target SDK 35), desktop 123

  • Evgeny Poberezkin (02 Nov 25)

    ios: v6.4.7 (build 310)

  • Evgeny Poberezkin (01 Nov 25)

    core: 6.4.7.1

  • Evgeny Poberezkin (01 Nov 25)

    core: update zip library to build in ghc8.10.7

SimpleX Website

Website

SimpleX Chat: private and secure messenger without any user IDs (not even random)

SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls.

Redirects

Does not redirect

Security Checks

All 65 security checks passed

Server Details

  • IP Address 185.199.110.153
  • Hostname cdn-185-199-110-153.github.com
  • Location California, Pennsylvania, United States of America, NA
  • ISP GitHub Inc.
  • ASN AS54113

Associated Countries

  • BE
  • US
  • GB

Safety Score

Website marked as safe

100%

Blacklist Check

simplex.chat was found on 0 blacklists

  • AntiSocial Blacklist
  • Artists Against 419
  • Badbitcoin
  • Bambenek Consulting
  • CERT Polska
  • CoinBlockerLists
  • CRDF
  • CryptoScamDB
  • EtherAddressLookup
  • EtherScamDB
  • Fake Website Buster
  • MetaMask EthPhishing
  • NABP Not Recommended Sites
  • OpenPhish
  • PetScams
  • PhishFeed
  • PhishFort
  • Phishing.Database
  • PhishStats
  • PhishTank
  • Phishunt
  • RPiList Not Serious
  • Scam.Directory
  • SecureReload Phishing List
  • Spam404
  • StopGunScams
  • Suspicious Hosting IP
  • ThreatFox
  • ThreatLog
  • TweetFeed
  • URLhaus
  • ViriBack C2 Tracker

Website Preview

SimpleX Android App

Update Info

  • App SimpleX
  • Creation Date 17 May 24
  • Last Updated 14 Jul 24
  • Current Version 5.7.3

Trackers

No trackers found

Permissions

  • Access Network State
  • Camera
  • Foreground Service
  • Internet
  • Modify Audio Settings
  • Post Notifications
  • Receive Boot Completed
  • Record Audio
  • Request Ignore Battery Optimizations
  • Use Biometric
  • Use Fingerprint
  • Use Full Screen Intent
  • Vibrate
  • Video Capture
  • Wake Lock
  • Write External Storage
  • Dynamic Receiver Not Exported Permission

SimpleX iOS App

App Info

SimpleX Chat: secure messenger

SimpleX - the first messaging network without user identifiers of any kind (not even random numbers) - 100% private by design! Security assessments by Trail of Bits: 2022: https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html 2024: https://simplex.chat/blog/20241014-simplex-network-v6-1-security-review-better-calls-user-experience.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.

Rating

Rated 4.37 out of 5 stars by 218 users

Version Info

  • Current Version 6.4.10
  • Last Updated 31 Jan 26
  • First Released 08 Mar 22
  • Minimum iOS Version 15.0
  • Device Models Supported 122

App Details

  • IPA Size 210.48 Mb
  • Price Free (USD)
  • Age Advisory 12+
  • Supported Languages 17
  • Developer SimpleX Chat Ltd
  • Bundle ID chat.simplex.app

Screenshots

SimpleX Socials

SimpleX Reviews

More Encrypted Messaging

  • Probably one of the most popular, secure private messaging apps that combines strong encryption (see Signal Protocol) with a simple UI and plenty of features. It's widely used across the world, and easy-to-use, functioning similar to WhatsApp - with instant messaging, read-receipts, support for media attachments and allows for high-quality voice and video calls. It's cross-platform, open-source and totally free. Signal is recommended by Edward Snowden, and is a perfect solution for most users.

  • Session is a fork of Signal, however unlike Signal it does not require a mobile number (or any other personal data) to register, instead each user is identified by a public key. It is also decentralized, with servers being run by the community though Loki Net, messages are encrypted and routed through several of these nodes. All communications are E2E encrypted, and there is no meta data.

  • XMPP, also known as Jabber, is an open standard for decentralized messaging that has been widely used for decades. It has actually been the basis upon which WhatsApp, Facebook's Chat and Google's Talk were built, but these companies (eventually) chose to remove the interoperability with other servers. Prominent XMPP clients support OMEMO end-to-end encryption, which is based on the Double Ratchet Algorithm that is used in Signal. For more hands-on information and to register an account you can visit JoinJabber.

  • Matrix is a decentralized open network for secure communications, with E2E encryption with Olm and Megolm. Along with the Element client, it supports VOIP + video calling and IM + group chats. Since Matrix has an open specification and Simple pragmatic RESTful HTTP/JSON API it makes it easy to integrates with existing 3rd party IDs to authenticate and discover users, as well as to build apps on top of it.

About the Data: SimpleX

API

You can access SimpleX's data programmatically via our API. Simply make a GET request to:

https://api.awesome-privacy.xyz/communication/encrypted-messaging/simplex

The REST API is free, no-auth and CORS-enabled. To learn more, view the Swagger Docs or read the API Usage Guide.

About the Data

Beyond the user-submitted YAML you see above, we also augment each listing with additional data dynamically fetched from several sources. To learn more about where the rest of data included in this page comes from, and how it is computed, see the About the Data section of our About page.

Share SimpleX

Help your friends compare Encrypted Messaging, and pick privacy-respecting software and services.
Share SimpleX and Awesome Privacy with your network!

View Encrypted Messaging (5)