U.S. Web Design System vs UI Prep Design System
| U.S. Web Design System | UI Prep Design System | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | self-hosted, Web | Web |
| Primary asset format | multiple | figma |
| Design-system ready | Yes | Yes |
| Responsive components | Yes | Yes |
| Accessibility guidance | Yes | Yes |
| License scope | commercial | commercial |
| Free plan | — | Yes |
| Paid from | — | 99 one-time |
Both are listed in Best UI Kit Libraries. On Samsung Mobile US Press, UI Prep Design System scores higher on our published basis.