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