Apps similar to VoltageOS include Android, which is free and open source. Other options are GrapheneOS, LineageOS, /e/ and Nura (postmarketOS). You can choose from more than 10 Mobile OSes like VoltageOS for Android, Linux and iPhone.
Sailfish OS is a European alternative to dominating mobile operating systems, and the only mobile OS offering an exclusive licensing model for local implementations.
Finland
EU
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.
China
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.
A security and privacy focused mobile operating system compatible with Android apps. Google-free secure Android for the latest hardware.
Canada
ViperOS It's Stable and Battery Friendly Custom ROM. Many features, High Performance and Reability. Feel the Venom in your vein.
