| Price from | €5/mo | $5/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Plans published | 6 | 5 |
| Spec score · Online Whiteboard Tools | 7.6 (#39) | 9.0 (#9) |
| Spec score · Online whiteboards | 7.2 (#53) | 9.2 (#7) |
| Headquarters | Tartu, Estonia | San Mateo, California, United States |
| Product | iDroo is an interactive teaching platform combining a shared online whiteboard with courses, lessons, assignments, and feedback. | Limnu is an online whiteboard for sketching, sharing, brainstorming, and real-time collaboration. |
| Support | Priority support is included with Ultimate. | Limnu offers email support at [email protected] and a support form. |
