Boddle vs Principia
| Boddle | Principia | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $0.34/mo | $4.17/mo |
| Open source | No | No |
| Platforms | Android, iOS, Web | iOS, macOS |
| Free plan | Yes | Yes |
| Paid from | — | $6.99/mo |
| Guided lessons | — | Yes |
| Supported platforms | — | ios, macos |
Both are listed in Best Math Learning Apps. On Inferse, Boddle scores higher on our published basis.