CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
iMazing - iMazing lets you transfer music, files, messages, apps and more from any iPhone, iPad, or iPod to a computer, Mac or PC. Manage and backup your iOS device simply without iTunes. (was DiskAid)
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
iExplorer - iExplorer lets you easily transfer music, playlists, text messages, files and more from any iPhone, iPod, or iPad to a Mac or Windows computer and iTunes.
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
CopyTrans - CopyTrans is a tool for managing the files on your iPhone or iPad through your computer's interface.