Xee3 - A better Mac OS X's Preview.app
DaisyDisk - DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.
MacFly Pro - Smart assistant for better Mac performance
CleanMyMac X - Clean, protect and speed up your Mac
Power Mode Switcher for macOS - macOS Monterey introduced a new feature for some Macs called Low Power Mode so you can save energy while keeping your Mac cool and quiet.
ApolloOne - A photo and video viewer created by photographer for photographers.