Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Android

HarmonyOS is described as 'Distributed microkernel OS for smart devices using AI and edge computing, with a multi-layered architecture, device-specific kernels, and Linux ABI support' and is a Mobile OS in the os & utilities category. There are more than 50 alternatives to HarmonyOS for a variety of platforms, including Android, Linux, Android Tablet, Windows and Linux Mobile apps. The best HarmonyOS alternative is Android, which is both free and Open Source. Other great apps like HarmonyOS are LineageOS, GrapheneOS, WayDroid and /e/.

B2G is a community maintained open source operating system for smartphones, tablets, smart TVs and other connected devices. The project was started in 2011 and is based on the Linux kernel and Gecko rendering engine.

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...


Introducing ARC Welder -- a tool to help you test and publish your Android Apps to Chrome OS using the App Runtime for Chrome (beta), ARC.
A security and privacy focused mobile operating system compatible with Android apps. Google-free secure Android for the latest hardware.


ViperOS It's Stable and Battery Friendly Custom ROM. Many features, High Performance and Reability. Feel the Venom in your vein.
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.


