Outerline vs WriterDuet
| Outerline | WriterDuet | |
|---|---|---|
| Free plan | No | Yes |
| Paid from | $1.99/mo | Free |
| Platforms | macOS, iOS | Web, Windows, macOS, Linux, iOS, Android |
| Free plan | No | Yes |
| Publishing tools | Yes | Yes |
| Version history | Yes | Yes |
| Mobile apps | Yes | Yes |
| Export formats | standard | extensive |
| Real-time collaboration | Yes | |
| Offline mode | Yes |
Listed together in Best Writing Apps