AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
DiskWarrior - DiskWarrior, the world's most advanced and highest rated hard disk, hard drive, and disk repair and data recovery tool for macOS, OS X and Mac OS X.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Data Rescue - When Apple's system recovery fails, recover any and all files with Data Rescue 3. This data rescue software will even work if your Mac's hard drive fails to mount.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
DriveDx - DriveDx is advanced drive health diagnostic and monitoring utility.