R2 Digital Library vs zyBooks
| R2 Digital Library | zyBooks | |
|---|---|---|
| Free trial | Yes | Yes |
| Platforms | Android, iOS, Web | Android, iOS, Linux, macOS, Web, Windows |
| Free plan | No | No |
| Access model | mixed | subscription |
| Offline access | Yes | |
| Annotation tools | Yes | Yes |
| Institutional admin | Yes | Yes |
| Device support | web_desktop_mobile | web_desktop_mobile |
| Read-aloud support | Yes | No |
Listed together in Best Digital Textbook Platforms