Mockapp vs Principle
| Mockapp | Principle | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | $99/mo |
| Open source | No | No |
| Platforms | iOS, Android | Web, macOS, iOS |
| Free plan | Yes | No |
| Interactive prototypes | Yes | — |
| User testing | Yes | — |
Both are listed in Best Prototyping Software. On Samsung Mobile US Press, Mockapp scores higher on our published basis.