The best alternative to LineageOS is iodéOS, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to LineageOS and eight of them are so hopefully you can find a suitable replacement. Other interesting alternatives to LineageOS are /e/, Ubuntu Touch, Plasma Mobile and Sailfish OS.
Android-based OS emphasizing privacy, open source transparency, tracker and ad blocking, independent app installation, digital sovereignty, community development, routine updates, environmental sustainability, and a familiar interface for alternative Android devices.
/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.
Ubuntu Touch is the Ubuntu operating system for mobile phones originally created by Canonical and now developed by the UBports Community.
Plasma Mobile turns your phone into a fully open hacking device, just like a PC. You can join us to start building new mobile experiences now.
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.
Industrial Android™ with emteria.OS Building, extending, customizing and maintaining embedded Android platform for reliable industrial applications and products.
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.
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Fast, secure, private. Recommend it with CalyxOS, the best ones imo