Onyx by Titanium - This website provides operating system utilities for macOS

CleanMem - CleanMem keeps memory use in check on the system without the memory being pushed to the page file.

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

Wise Memory Optimizer - Wise Memory Optimizer a simple and effective RAM booster to help you free up memory and get your computer running smoothly again.

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?

Memory Cleaner X - Memory Cleaner X cleans inactive RAM from your computer that allows you to have more applications...