Advanced SystemCare Free is a popular system cleaner and optimizer.

Glary Utilities is a comprehensive system cleaner and performance booster.

Clean Master (Cleaner) is an app that will keep your Android device always tidy and performing well.

System Mechanic is a software designed to repair, optimize, and protect Windows PCs.

Toolwiz Care is a free toolkit designed to speed up slow PC.

Ashampoo WinOptimizer is a system tweaking utility.

AVG TuneUp is a free Windows utility designed to clean up junk files on your PC and possibly increase system performance.

Remo MORE brings in Parental Control, Anti-theft, Location Tracking & Multi-Device Management solutions from one dashboard.

Performance maintainer is an open source software which cleans registry, cleanup disk, defrag drive.

WinUtilities is a multi-functional system performance and optimization suite for Windows.