What is a "Signal Android"? The Most Authoritative Explanation.

How does the Signal app work?

Credit: Signal. The app uses its own open-source Signal Protocol to provide encrypted end-to-end communication between Signal users. That includes encrypted text, group chats, voice messages, photos, and videos for iOS, Android, and PC owners. The Signal Android version can also serve as a phone’s SMS or MMS app, ...

How to install signal on Android?

The safest and easiest way to install Signal for Android is through the Google Play Store. Advanced users with special needs can download the Signal APK directly. Most users should not do this under normal circumstances. You can verify the signing certificate on the APK matches this SHA256 fingerprint:

How many users does the Signal app have?

The Signal Foundation has never disclosed how many daily or monthly users the app has. However, we do know, via the Google Play Store listing, that the Android version of the app has been downloaded over 50 million times. We also know that the Signal app received a huge swell of users in early 2021, temporarily causing the servers to fail.

Does Signal's app support RCS?

Signal didn’t immediately reply to The Verge ’s request for comment on whether its app supported RCS or whether the adoption of it as a messaging standard for Android played into its decision to remove text messaging from its app.