Mochi is an app that aims to help you remember things. It uses a type of flash card system called spaced repetition to optimize your study time and retention rate.

Wallcat is a free app that gives you a beautiful new desktop wallpaper on macOS and Google Chrome Tab.

Endurance is an app that helps your Mac run longer. Endurance runs in the background and when your battery level drops to a certain level, it automatically starts adjusting your settings and turning off features which use a lot of energy.