Cairn vs Rheo
| Cairn | Rheo | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | Free | $49.99/mo |
| Open source | No | No |
| Platforms | macOS | Android, iOS |
| Free plan | Yes | Yes |
| Real-time collaboration | No | — |
| Interactive prototypes | No | Yes |
| Supported platforms | macOS | iOS, Android, React Native |
| Version history | — | Yes |
| Flow templates | — | Yes |
Both are listed in Best User Flow Software. On Specifiction, Cairn scores higher on our published basis.