Imo is a free, simple,secure and faster international video call & instant messaging app.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Mac
- Windows
- Android
- iPhone
- Android Tablet
- HUAWEI AppGallery
- iPad




Molly is described as 'Independent Signal fork for Android' and is a instant messenger in the social & communications category. There are more than 100 alternatives to Molly for a variety of platforms, including Android, iPhone, Windows, Linux and Mac apps. The best Molly alternative is Signal, which is both free and Open Source. Other great apps like Molly are Telegram, Element, Matrix and Tox.
Imo is a free, simple,secure and faster international video call & instant messaging app.




A fork of Signal for Android with proprietary Google binary blobs removed. Uses OpenStreetMap for maps and a websocket server connection, instead of Google Maps and Firebase Cloud Messaging.




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...

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 /...










Quaternion is a cross-platform Qt5-based desktop IM client for Matrix, a reference desktop application using libQMatrixClient. Source code, issue tracker, roadmap etc. can be found at GitHub. Releases (with links to cross-platform source code archives, as well as binaries for...









Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development.

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).



