CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
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.
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
321Soft Data Recovery for Mac - The ultimate Mac Data Recovery software with RAID supported.