Britannica Library vs World Book Online
| Britannica Library | World Book Online | |
|---|---|---|
| Free plan | No | |
| Paid from | $20.83/mo | |
| Platforms | Web | Android, iOS, Web |
| Free plan | No | No |
| Citation tools | Yes | Yes |
| Educator resources | Yes | Yes |
| Institutional access | Yes | Yes |
| Content formats | multimedia and interactive | multimedia and interactive |
| Update frequency | continuous | continuous |
| Mobile apps | No | Yes |
Listed together in Best Online Encyclopedias