Celtx vs WriterDuet
| Celtx | WriterDuet | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | $11.24/mo | Free |
| Open source | No | No |
| Platforms | Android, extension, iOS, macOS, Web, Windows | Web, Windows, macOS, Linux, iOS, Android |
| Free plan | Yes | Yes |
| Paid from | $11.24/user/mo | — |
| Publishing tools | Yes | Yes |
| Real-time collaboration | Yes | Yes |
| Version history | Yes | Yes |
| Offline mode | Yes | Yes |
| Mobile apps | Yes | Yes |
| Export formats | standard | extensive |
Both are listed in Best Writing Apps, Best Screenwriting Software. On Samsung Mobile US Press, Celtx scores higher on our published basis.