Operating Systems for Android

Open-source mobile operating system, seamlessly integrating with Google services, enabling extensive app support and hardware compatibility across brands.

GrapheneOS is a privacy and security focused mobile OS with Android app compatibility developed as a non-profit open source project. It's focused on the research and development of privacy and security technology including substantial improvements to sandboxing, exploit...

Free and open-source Android-based OS for smartphones and tablets that enables deep customization, regular security updates, privacy focus, and broad device compatibility.

/e/ is a fork of LineageOS that aims to be completely free of everything Google. Not only that, but there are a number of goals the developer has in mind for /e/ that more people feel are vital to a mobile operating system.

Everyone needs a phone. Not everyone wants governments and corporations tracking their every move and spying on their communications. CalyxOS lets you have your cake and eat it too, with "Privacy by Design".

Replicant is a fully free Android distribution running on several devices, a free software mobile operating system putting the emphasis on freedom and privacy/security. It is based on LineageOS and replaces or avoids every proprietary component of the system, such as user-space...

PixelOS is an AOSP based ROM, with Google apps included and all Pixel goodies. We aim to provide an experience similar to Google Pixel phones with numerous performance enhancements and a small amount of useful additional features.

Android-based operating system prioritizing privacy, open source code, tracker blocking, digital sovereignty, and sustainable, eco-friendly practices.

LineageOS unofficial fork with built-in microG gapps implementation.

An Open-Source OS, based on Android, for phones, tablets & PCs with Desktop GUI.

alternative, open source version of Fairphone OS, built by Fairphone, that puts transparency and ownership in the spotlight.

AXP.OS is a more private and more secure aftermarket mobile operating system based on AOSP & LineageOS.

XR stands for extended reality. It’s an umbrella term that encompasses all technologies that blend the real and virtual worlds including virtual reality, augmented reality, and mixed reality.

The new operating system from OnePlus, based on Android. OxygenOS is light and essential with subtle, useful features.

Xiaomi HyperOS is a proprietary operating system developed by Xiaomi. It's designed to provide an enhanced user experience through its unique features and functionalities. The system integrates seamlessly with Xiaomi's wide range of devices, creating a unified and...

A simplified, focused and open NAS OS that supports all X86-64 hardware.

Amazon Fire OS is an Android-based mobile operating system produced by Amazon for its Fire Phone and Kindle Fire range of tablets, and Fire TV; the tablet versions of the Kindle e-readers are the Fire range. It is forked from Android.

An intuitive aftermarket Android firmware.

The Friend Unifying Platform is a powerful open source framework that will allow developers to decouple their applications from technology silos. It will empower developers to swiftly deploy on and integrate with Ethereum and other decentralised technologies in a new blockchain...

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.

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...