GrapheneOS is an Android-based, security-hardened, privacy focused, free and open-source, mobile operating system for selected smartphones. It was known as Android Hardening until March 2019, and is focused on privacy and security. It is compatible with several Google Pixel smartphones.
Recent launches
GrapheneOS
This is an open source mobile OS with Android app compatibility, support on all Pixel phones, and with an aim to be more than just a fork of Android. 🤖