CleanMyMac X - Clean, protect and speed up your Mac
Timetaco - Create your own countdowns, as easy as 3, 2, 1
Fossils - Find and clean out all your old unused files
Coountdown - 3 2 1 ! Create day counter on menu bar macOS. 🚀
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
Padbury Clock Screensaver - Minimal screensaver for Mac