Tomato

A handwriting notes and sketching app for Android with stylus support

Bringing Astrid Tasks back from the dead

Turn your images and videos into a personal knowledge base

Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

Super Productivity is an advanced todo list app with integrated Timeboxing and time tracking capabilities.

PlainApp is an open-source app that lets you securely manage your phone from a web browser.