Duolingo vs Vaia
| Duolingo | Vaia | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Android, iOS, macOS, Web | Web, iOS, Android |
| Free plan | Yes | Yes |
| Mobile app coverage | No | — |
Both are listed in Best AI Study Tools. On Freedom251, Duolingo scores higher on our published basis.