GrapheneOS is described as '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' and is a very popular Mobile OS in the os & utilities category. There are more than 25 alternatives to GrapheneOS for a variety of platforms, including Android, Linux, Android Tablet, Linux Mobile and Android SDK apps. The best GrapheneOS alternative is Android, which is both free and Open Source. Other great apps like GrapheneOS are LineageOS, iodéOS, CalyxOS and postmarketOS.
CarbonRom is an aftermarket firmware based on the Android Open Source Project.
Features:
PIE Halo AOKP Ribbons Comprehensive speed enhancements, including Linaro -O3 and processor-specific optimizations Unofficial Voodoo Sound support on Note 2 and i9300 de.
BlissRoms, an open-source operating system built upon Android Open Source Project, that offers a harmonious blend of customization, options, and security features. With a commitment to delivering pure bliss in every build, it brings with it a world of limitless possibilities.
RestlessOS is an unofficial, unaffiliated fork of GrapheneOS packaged as a Generic System Image (GSI) for Project Treble devices. It is not endorsed by, sponsored by, or in any way connected to the GrapheneOS project or its developers.
DerpFest is a Custom ROM inspired by AOSiP that incorporates the best features around and longs to support the community with its own unique features and contributions.
LuneOS is an open source firmware distribution for smartphones and tablet computers based on the Open webOS mobile operating system.
Oniro is an Eclipse Foundation project focused on the development of a distributed open source operating system for consumer devices, regardless of the brand, model, make.
A security and privacy focused mobile operating system compatible with Android apps. Google-free secure Android for the latest hardware.
No frills pure AOSP experience that will not let you down in getting through every day uninterrupted by inconveniences, with just the right dab of customisations. Be it requiring safetynet for banking or payment apps to receiving the latest security patches from Google as soon...
Asus Zen UI (stylized as ASUS ZenUI) is a front-end touch interface developed by ASUS with partners, featuring a full touch user interface.
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.
Kupfer is an Arch Linux ARM derived distribution designed to support the Linux mobile effort. It is to Arch Linux what postmarketOS is to Alpine, or Mobian is to Debian.
United States
Canada
Ireland
EU
CopperheadOS is neither secure nor privacy-focused. It's just a closed-sourced ROM that's ripping other developers' work. Avoid it, and take a look at CalyxOS, GrapheneOS or LineageOS instead.