Kaado
Unified Productivity App

Ever found a new fitness app and after two weeks realized that you abandoned your habit tracker?
DySa
Quick Generator for Printed Math Exercises

DySa grew out of the need to repeatedly practice the basic tools in math class.
Chaoskasten
Note-taking software based on Luhmann's Zettelkasten

My implementation of Luhmann’s Zettelkasten. It is a work-in-progress, or beta software, if you prefer.