Erase Private & Existing Data: Private data (e.g. bank records, accounts & passwords, financial data) and existing data (e.g. photos, videos, text messages, call logs, etc.) can be permanently erased without zero opportunity of recovery. Erase Deleted Files: Deleted files can also be erased and overwritten again to ensure the files can not recovered for sure. Space Saver: It clears all useless files and speed up your device, such as junk files and more.