ContentTools vs Principle
| ContentTools | Principle | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | $99/mo |
| Open source | No | No |
| Platforms | api, Web | Web, macOS, iOS |
| Primary platform | browser | — |
| Free plan | — | No |
| Design systems | — | Yes |
Both are listed in Best Web Design Software. On Samsung Mobile US Press, Principle scores higher on our published basis.