OpenStax vs TESSA OER
| OpenStax | TESSA OER | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | |
| Paid from | Free | Free |
| Platforms | Android, iOS, Web | Web |
| Free plan | Yes | Yes |
| Access model | mixed | |
| Offline access | Yes | |
| Annotation tools | Yes | |
| Device support | web_desktop_mobile | |
| Read-aloud support | Yes | |
| Remix and adaptation | Yes | |
| Content review | Yes |
Listed together in Best Open Educational Resource Platforms