Avast Cleanup - Next generation tuneup and cleanup for your PC
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
CleanMyMac X - Clean, protect and speed up your Mac
Advanced System Optemizer - Clean, optimize and personalize your PC
TweakPower - TweakPower is a versatile PC cleaning optimization and backup software that lets you fix all the problems that occur in your PC as well as fix common problems.
CleanMyPC - A smart cleaning tool for a better-running computer.