Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Mem Reduct - Mem Reduct is a small application that allows you to monitor and clean your computers memory.
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
Memory Cleaner X - Memory Cleaner X cleans inactive RAM from your computer that allows you to have more applications...