Best OxygenOS Alternatives & Competitors in 2025

Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.

Open Source

Xiaomi MIUI Official Global Site. MIUI is a customized Android ROM developed by Xiaomi for smartphones and tablets. MIUI Forum offers ROM downloads for 251 devices including Mi 6, Mi MIX 2, Redmi Note 4 and others.

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Operating system for smartphones and tablet computers, based on the Android

CyanogenMod is a custom version of the Android operating system.

GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.

Open Source

PixelExperience is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, icons, fonts, bootanimation).

Omni is about innovation, new features, transparency, community, and freedom.‎OmniROM Blog · ‎OmniROM 5. 1. 1 Lollipop ..

iOS is the operating system associated by default with all Apple mobile devices.

Resurrection Remix ROM is ultimately full featured, stable and combined with the best features of...

Replicant is a distribution of Android that is 100% Free Software.

At the heart of Jolla is Sailfish OS, the independent mobile operating system offering an alternative to the existing dominant systems. Sailfish OS is the perfect solution for country ecosystem and corporate mobile projects, or for consumer devices.

Read more about Ubuntu Touch. Our free and open source mobile OS is made and maintained by UBports! We care about your freedom and privacy.

Paranoid Android provides a unique experience and ultimate customization for your Android device.