Telegram messenger for Android
Server supporting the Signal Private Messenger applications on Android
Distributed instant messaging system for developers
Used to integrate Android apps with Facebook Platform
A decentralized, privacy-first Android communication app built
Secure communication software
Software per Call Center
Smoke: Android Crypto Chat Messenger
A beautiful SMS messenger for Android
A glossy Matrix collaboration client for Android
IXSF Messenger is a java-based messenger
Chat Messenger written in Java
Cross-Platform Mobile Messaging Application
Underground IM is a free Java Instant Messaging solution.
a java based LAN messenger
Facebook Chat Desktop Messenger