Onyx by Titanium - This website provides operating system utilities for macOS
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
MacPilot - Unlock over 1200 features in Mac OS X and optimize your system!
CleanMyMac X - Clean, protect and speed up your Mac
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
MacFly Pro - Smart assistant for better Mac performance