CleanMyMac X - Clean, protect and speed up your Mac
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
BuhoCleaner - The Best Mac Cleaner Optimized for M1 Pro & M1 Max
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Clean Me - A small macOS app that acts as a system cleaner (logs, cache, …)
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode