Signal-Android is the official open-source Android client for Signal, a secure messaging app focused on end-to-end encryption and privacy. Developed by the Signal Foundation, it enables private messaging, voice, and video calls, without storing user data. Signal uses the Signal Protocol for encryption and does not collect metadata, making it one of the most privacy-focused communication platforms available.

Features

  • End-to-end encrypted messages, calls, and media
  • No ads or user tracking
  • Disappearing messages and safety numbers
  • Encrypted group messaging
  • Open-source Signal Protocol implementation
  • Cross-platform sync with desktop and iOS

Project Samples

Project Activity

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Categories

Messaging

License

Affero GNU Public License

Follow Signal

Signal Web Site

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Additional Project Details

Operating Systems

Android

Programming Language

Kotlin

Related Categories

Kotlin Messaging Platform

Registered

2025-07-22