Android - Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.
PureOS - A user friendly, secure and freedom respecting OS for your daily usage
LineageOS - Operating system for smartphones and tablet computers, based on the Android
DivestOS - A mobile operating system divested from the norm.
KaiOS - KaiOS is a light operating system for smart feature phones like the JioPhone and Nokia 8110.
LuneOS - LuneOS is a free and open source mobile operating system that respects users’ privacy.