Clean Master - Some users swear by it, some call it a glorified snake oil that does more harm than good. That can be said about any snake oil, but what specific brand of snake oil can boast almost a billion downloads around the world?

Greenify - Greenify is a mobile app that gives you greater control over your Android device's power usage, allowing you to get a lot more mileage out of your battery life without having to constantly plug it back into a charger.

CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.

BleachBit - When your computer is getting full, BleachBit quickly frees disk space.

Auslogics BoostSpeed - Is your internet or computer running slow? Auslogics BoostSpeed can help! This award-winning PC optimizer runs disk cleanup, defragments disks & registry, speeds up internet, and keeps your PC glitch-free. Don't let a sluggish computer hold you back.

AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode