Yes — on Google Play
Signal - Private Messenger has a Google Play listing.
App Store
On Google Play
Is Signal - Private Messenger on Android?
About Signal - Private Messenger
Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your communication completely private. • Send texts, voice messages, photos, videos, GIFs, and files for free. Signal uses your phone’s data connection, so you avoid SMS and MMS fees. • …
Signal - Private Messenger is listed on both the App Store and Google Play from Signal Messenger, LLC, so you can install it on Android phones and tablets. The Play Store listing shows 100,000,000+ installs.