One of the most popular alternatives to CopperheadOS is GrapheneOS, which is free and open source. Other popular alternatives are LineageOS, /e/, Nura (postmarketOS) and CalyxOS. You're spoiled for choice with Android ROMs like CopperheadOS: we list more than 25 alternatives for Android, Linux, Mac, Windows and self-hosting.
Oniro is an Eclipse Foundation project focused on the development of a distributed open source operating system for consumer devices, regardless of the brand, model, make.
United States
EMUI is a HarmonyOS/Android (operating system) mobile operating system developed by Chinese technology company Huawei. It is used on the company's smartphones and tablet computers.
China
The major difference between Google's stock Android and OPPO's ColorOS is the latter's additional features. Such features include: customizable gestures for screen off, screen on, communication, a security centre, lock screen magazines, options for long screen shot...
China
Asus Zen UI (stylized as ASUS ZenUI) is a front-end touch interface developed by ASUS with partners, featuring a full touch user interface.
Qt6/QML Wayland compositor on PostmarketOS. Runs on any device with mainline Linux support or Libhybris. Core features work at 60 FPS on OnePlus 6. Performance target: fluid on decade-old chipsets, exceptional on newer hardware.
Ireland
EU
