Android codename, version and year.

Ubuntu Touch is the open source phone that has freedom and privacy in mind. Supported by dozens of devices, with installer for FOSS fans.

Is a mobile version of the Ubuntu operating system, developed by the UBports community designed primarily for touchscreen mobile devices such as smartphones and tablet computers.

List of The Most Popular Operating Systems

Names of operating systems that are popular amongst users worldwide.

This is a list of Android distributions, Android-based operating systems (OS) commonly referred to as Custom ROMs or Android ROMs, forked from the Android Open Source Project (AOSP) without Google Play Services included officially in some or all markets, yet maintained independent coverage in notable Android-related sources.

The list may include distributions that come pre-installed on a device (stock ROM) or modifications of them. Only builds considered official are listed.

List of active custom Android distributions