AnnotationBase vs Perusall
| AnnotationBase | Perusall | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | £8.25/mo | — |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | Yes | Yes |
| Annotation modes | comments | both |
| Collaborative review | Yes | Yes |
| Guest access | Yes | Yes |
| Document support | webpages | both |
| Browser capture | Yes | — |
| Export options | AI instructions; comments and project data | PDF, Microsoft Word, spreadsheet, downloadable comments, documents with embedded comments |
Both are listed in Best Web Annotation Tools. On Inferse, AnnotationBase scores higher on our published basis.