Lomiri is built with Qt/QML and is designed to adapt across devices — from smartphones and tablets to desktop use when connected to an external display. It is currently maintained by the UBports community.

Phosh is a mobile-first desktop environment developed by Purism for the Librem 5, now adopted by many mobile Linux distros. It uses GNOME technologies, providing a clean touch interface with strong ecosystem and app support.

Plasma Mobile is the mobile variant of KDE Plasma, designed for touch-based devices like phones and tablets. It delivers a free, privacy-respecting alternative with a familiar KDE look and integration with Linux apps and services.

Sailfish Silica is the native UI toolkit for Sailfish OS, designed for mobile devices. It provides smooth gesture-based navigation, adaptive layouts, and a unique look that sets Sailfish apart from Android and iOS.