CENTURY vs Primer
| CENTURY | Primer | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | No |
| Paid from | £12.49/mo | — |
| Open source | No | No |
| Platforms | Web | Web, iOS |
| Free plan | No | No |
| Adaptive practice | — | Yes |
| Adaptive learning paths | — | Yes |
| Diagnostic assessment | — | Yes |
Both are listed in Best Adaptive Learning Software. On Samsung Mobile US Press, Primer scores higher on our published basis.