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Signal

Free · Encrypted · Cross-platform

Signal is a private messaging and calling app that uses end-to-end encryption to protect your conversations. It is free, open-source, and does not collect user data. Signal supports text, voice, video, and group chats, and is available on all major platforms.

End-to-end encryption
Voice and video calls
Group chats
Self-destructing messages
Open-source and audited
No ads or trackers

System Requirements

  • Windows 7/8/10/11
  • macOS 10.13+
  • Linux (any)
  • iOS 14+
  • Android 6+
  • 1 GB RAM