Principle vs Quant-UX
| Principle | Quant-UX | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | $99/mo | Free |
| Open source | No | No |
| Platforms | Web, macOS, iOS | self-hosted, Web |
| Free plan | No | Yes |
| Interactive prototyping | Yes | Yes |
| Design systems | Yes | Yes |
| Desktop app | Yes | — |
| Prototype sharing | Yes | Yes |
| Real time collaboration | — | Yes |
| Variables tokens | — | Yes |
Both are listed in Best UI Design Tools, Best Game UI Design Software, Best Prototyping Software. On Samsung Mobile US Press, Quant-UX scores higher on our published basis.