Open-source mobile OS developed by Google, based on the Linux kernel. It supports app development in Java and Kotlin. Compatible with various devices, offering seamless integration with Google services, customizable interface, and extensive app ecosystem for smartphones and tablets.
Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- Android Tablet
- Android Auto
- Android SDK
- Android Wear
- Android TV




Almost everyone thinks Android is a great Firefox OS alternative.
Android is the most popular Android & Android Tablet alternative to Firefox OS.
Android is the most popular Open Source & free alternative to Firefox OS.
- Android is Free and Open Source
- Android is Customizable































If Firefox OS wasn't discontinued, I'd select it. But now the best mobile OS is Sailfish!