Anti-Twin vs Folder Size
| Anti-Twin | Folder Size | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $24.95/mo |
| Open source | No | No |
| Platforms | Windows, Linux, macOS | Windows |
| Free plan | Yes | Yes |
| Platform coverage | cross-platform | windows |
| Scan locations | local hard disks, USB flash disks, memory cards, shared network folders, second folder/path | Folders, local drives, computers, diskettes, CD/DVD-ROM, USB flash drives, external hard drives, NAS, and network computers or drives |
| Match methods | file names, byte-by-byte file content, binary similarity, pixel-based image comparison | Binary content, similar content, file size, similar file names, and identical file name plus size |
| Automatic selection | Yes | Yes |
| Recycle Bin / Trash | Yes | Yes |
| File preview | — | Yes |
| Folder exclusions | — | Yes |
Both are listed in Best Duplicate File Finders. On Everything Xiaomi, Folder Size scores higher on our published basis.