Mobian is an open-source project aimed at bringing Debian GNU/Linux to mobile devices.




ProtonAOSP is described as 'Minimal Android fork (custom ROM) focused on UI/UX and performance, with a touch of privacy' and is a Mobile OS in the os & utilities category. There are more than 25 alternatives to ProtonAOSP for a variety of platforms, including Android, Linux, Android Tablet, Linux Mobile and iPhone apps. The best ProtonAOSP alternative is Android, which is both free and Open Source. Other great apps like ProtonAOSP are GrapheneOS, LineageOS, /e/ and postmarketOS.
Mobian is an open-source project aimed at bringing Debian GNU/Linux to mobile devices.




Sailfish OS is a European alternative to dominating mobile operating systems, and the only mobile OS offering an exclusive licensing model for local implementations.




alternative, open source version of Fairphone OS, built by Fairphone, that puts transparency and ownership in the spotlight.
Distributed microkernel OS with AI and edge computing capabilities for smartphones, wearables, TVs, tablets, and IoT; features multi-layered architecture, custom device kernels, Linux ABI compatibility, seamless interaction, and resource sharing across devices.

Open source Linux-based platform designed for smartphones, tablets, netbooks, automotive infotainment, and smart TVs, offering scalable compatibility, advanced multimedia, touch support, Application Compatibility Layer for Android apps, 3D UI, and multitasking.



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



Project Elixir basically offers a minimal UI enhancement & close to Stock Android ROM with great performance, security and stability. Your experience while using Project Elixir will be butter smooth without compromising the quality of the Android experience.


Ubuntu Touch is made and maintained by UBports. It is a free and open source mobile OS for you! Meanwhile we care about your privacy and freedom.
The new operating system from OnePlus, based on Android. OxygenOS is light and essential with subtle, useful features.







iPadOS is the mobile operating system for iPad devices from version 13 onward. Before version 13, iPad devices ran iOS.

webOS is a web-centric and usability-focused software platform for smart devices. The operating system has constantly evolved, passing through its journey from Palm to HP, and most recently to LG Electronics.
