Atlas Runa vs Sotto
| Atlas Runa | Sotto | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | $6.99/mo | — |
| Open source | No | No |
| Platforms | extension, Web | Web, Windows, macOS, Linux, iOS |
| Free plan | Yes | Yes |
| Paid from | $13.99/mo | — |
| Speech practice | Yes | Yes |
| Personalized review | Yes | Yes |
| Mobile apps | No | Yes |
| Languages offered | 5 | — |
| Offline lessons | — | Yes |
| Placement test | — | Yes |
Both are listed in Best Language Learning Apps. On The Geeks Club, Atlas Runa scores higher on our published basis.