R2 Digital Library vs Top Hat
| R2 Digital Library | Top Hat | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | $35/mo |
| Open source | No | No |
| Platforms | Web | Android, iOS, Web |
| Free plan | No | — |
| Access model | mixed | — |
| Offline access | Yes | — |
| Annotation tools | Yes | — |
| Institutional admin | Yes | — |
| Device support | web_desktop_mobile | — |
| Read-aloud support | Yes | — |
| Paid from | — | 35 /mo |
Both are listed in Best Digital Textbook Platforms. On Samsung Mobile US Press, Top Hat scores higher on our published basis.