Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- Android Tablet
- F-Droid




Dino is described as 'Modern open-source chat client for the desktop. It focuses on providing a clean and reliable Jabber/XMPP experience while having your privacy in mind. Using GTK+/Vala' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Dino for a variety of platforms, including Android, Linux, Mac, Windows and iPhone apps. The best Dino alternative is Signal, which is both free and Open Source. Other great apps like Dino are Telegram, Element, Matrix and Pidgin.




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.
Smoke Messenger is an open-source Instant Messenger that is known as the first mobile Messenger worlwide using the encryption algorithm McEliece. To be downloaded at F-Droid.org or Github.com. Smoke provides with its own Server-Software: SmokeStack-Echo-Server.




PrivMX Fusion is safe and easy collaboration software for all kinds of teams, with virtual workspace protected by end-to-end encryption. Each team uses desktop/laptop client software and its own (zero-knowledge) PrivMX Team Server.




Retro AIM Server is an instant messaging server that revives AOL Instant Messenger (and ICQ!) clients from the 2000s.

Swift is an elegant, secure, adaptable and intuitive XMPP client, with features that make it suitable for a wide range of use scenarios.


Zom's security and privacy features are powered by the amazing foundation created by the ChatSecure project, and works with other great apps like Conversations.
A simple-to-use messaging app for 1:1 communication and small groups supporting SMS, MMS, matrix and XMPP through libpurple.

World's most secure P2P messenger. End-to-end encrypted, zero-server architecture, quantum-resistant roadmap. WebRTC direct connections, advanced ECDH + DTLS + SAS verification, full ASN.1 validation.




BeagleIM is a lightweight and powerful XMPP client developed by Tigase, Inc. It provides an easy way to start using the XMPP Protocol (formerly known as Jabber) if you've never used it before. Veterans of the protocol will find many features here they are familiar.




A Custom CRM for Nonprofits with a Full Suite of Apps. We solve the biggest problems nonprofits face in a modern and user-friendly CRM.




Cloud-based platform for business chat, messaging, and task management, delivering structured communication, instant access control, integration with business tools, and business-grade security while supporting flexible workflows, clear roles, and team alignment.



