CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
dconf Editor - dconf is a low-level configuration system. Its main purpose is to provide a backend to GSettings on platforms that don't already have configuration storage system.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Unity Tweak Tool - Unity Tweak Tool is a settings manager for the ...
Advanced SystemCare - Free optimization software & registry cleaner for Windows 10, 8, 7, Vista and XP. Advanced SystemCare Free to speed up PC, clean registry and repair system in one click.
GNOME Tweak Tool - GNOME Tweak Tool allows the adjustment of several advanced ...