Anti-Twin is described as 'Small software application which compares files, i.e. it searches for duplicate or similar files on your hard disk drive. All similar or identical files that were found can either be sent to the recycle bin or directly deleted' and is a duplicate file finder in the file management category. There are more than 100 alternatives to Anti-Twin for a variety of platforms, including Windows, Mac, Linux, iPhone and Android apps. The best Anti-Twin alternative is CCleaner, which is free. Other great apps like Anti-Twin are Czkawka, Glary Utilities, dupeGuru and Directory Opus.