Principle vs PrototypeTool
| Principle | PrototypeTool | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | $99/mo | $29/mo |
| Open source | No | No |
| Platforms | Web, macOS, iOS | Web |
| Free plan | No | Yes |
| Interactive prototypes | — | Yes |
| Conditional logic | — | Yes |
| User testing | — | Yes |
| Team collaboration | — | Yes |
| Platform support | — | web |
| Prototype sharing | — | restricted |
Both are listed in Best Prototyping Software. On Samsung Mobile US Press, Principle scores higher on our published basis.