Cost / License
- Free
- Proprietary
Application types
Platforms
- Mac
- iPhone
- iPad
- Apple Watch




Adamant Messenger is described as 'The most secure and anonymous messenger, encrypted with Blockchain' and is a instant messenger in the social & communications category. There are more than 100 alternatives to Adamant Messenger for a variety of platforms, including Android, iPhone, Windows, Mac and Linux apps. The best Adamant Messenger alternative is Signal, which is both free and Open Source. Other great apps like Adamant Messenger are Telegram, Element, Matrix and Tox.




Kik is way more than just messaging. It’s the easiest way to connect with your friends, stay in the loop, and explore – all through chat. No phone numbers, just pick a username.




Quantum-resistant encrypted messaging, video/audio calls, and file transfers in the browser with optional registration and no downloads required.



Open source Jabber (XMPP) client with multi-account support, clean and simple interface. Being both free (as in freedom!) and ad-free, Xabber is designed to be the best Jabber client for Android .




TeleGuard is the data-secure messenger from Swisscows. TeleGuard encrypts every message and all telephone calls with encryption algorithm currently available: SALSA 20. TeleGuard servers are located in Switzerland, they are not subject to the data protection laws of the EU /...




Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).










Technitium Mesh is a secure, anonymous, peer-to-peer (p2p), open source instant messenger designed to provide end-to-end encryption. Primary aim of developing this instant messenger is to provide privacy which is achieved using cryptography and anonymity using Tor network.

µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs fast! µTox is available for Windows, OS X, and Linux (Android support is experimental), with full support for chat, file transfers, audio/video calling, and desktop sharing...

Ricochet Refresh is the new updated version of Ricochet, supported by Blueprint for Free Speech.. We are a non-government, not-for-profit organisation working to safeguard the freedom of expression for whistleblowers, activists, and everybody else, worldwide.



TorChat is a peer to peer instant messenger with a completely decentralized design, built on top of Tor's location hidden services, giving you extremely strong anonymity while being very easy to use without the need to install or configure anything.
