Android (operating system) forks

CyanogenMod ( ; CM) is a discontinued open-source operating system for mobile devices, based on the Android mobile platform. Developed between 2009 and 2016, it was free and open-source software based on the official releases of Android by Google, with added original and third-party code, and based on a rolling release development model. Although only a subset of total CyanogenMod users elected to report their use of the firmware, on 23 March 2015, some reports indicated that over 50 million people ran CyanogenMod on their phones. It was also frequently used as a starting point by developers o

LineageOS is an open source Android (AOSP)-based operating system for smartphones, tablets, and set-top boxes. It is community-developed and serves as the successor to CyanogenMod, from which it was forked in December 2016. As of 2025, there are about 4.5 million devices running LineageOS.

Android-based mobile operating system produced by Amazon

ColorOS is a user interface created by Oppo based on the Android Open Source Project. Initially, Realme phones used ColorOS until it was replaced by Realme UI in 2020. Realme UI uses some of ColorOS's apps. Starting from the OnePlus 9 series, OnePlus will preinstall ColorOS on all smartphones that are sold in mainland China instead of HydrogenOS (Chinese version of OxygenOS).

free software version of Android

free and open source OS distribution based on LineageOS

EncroChat was a Europe-based communications network and service provider that offered modified smartphones allowing encrypted communication among subscribers. It was used primarily by organised crime members to plan criminal activities.

Line of Android-based mobile phones designed and marketed by Nokia

Mobile operating system

operating system

PixelExperience is a discontinued, open-source, Android-based operating system. The project was initiated by a community of developers in 2017. Pixel Experience was designed to be as close to "stock Android" as possible, with a focus on reliability, security, stability, performance, battery life, and useful customizations.