Marker.io vs Perusall
| Marker.io | Perusall | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | No |
| Paid from | $39/mo | — |
| Open source | No | No |
| Platforms | extension, Web | Web |
| Free plan | No | Yes |
| Annotation modes | — | both |
| Collaborative review | — | Yes |
| Guest access | — | Yes |
| Document support | — | both |
| Export options | — | PDF, Microsoft Word, spreadsheet, downloadable comments, documents with embedded comments |
Both are listed in Best Web Annotation Tools. On Specifiction, Marker.io scores higher on our published basis.