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.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
321Soft Data Recovery for Mac - The ultimate Mac Data Recovery software with RAID supported.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
iBoysoft Data Recovery - iBoysoft Data Recovery for Windows serves as advanced data recovery software to assist users in file recovery from Recycle Bin, BitLocker-secured drives, RAW partitions, corrupted or formatted drives, deleted or lost partitions, etc. on Windows.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.