Signal

Signal Messenger LLC (Signal Foundation) · Part of Signal apps

End-to-end encrypted messages and calls, run by a non-profit.

Get Signal

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What are these stores? App Store, Google Play, Aurora Store, Flathub, Snap Store, Zapstore

Signal encrypts every message, voice and video call end to end with the Signal Protocol, and keeps as little metadata as it can. It is run by the non-profit Signal Foundation and funded by donations. Desktop apps for Windows, macOS and Linux link to the phone app; they are downloaded from signal.org.

Developer

Signal Messenger LLC (Signal Foundation)

Website

signal.org/download/

Source code

github.com/signalapp/Signal-Android

Added to AppCosmos

9 October 2026

License

AGPL-3.0