Duolingo vs ReadTheory
| Duolingo | ReadTheory | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Paid from | Free | $40/mo |
| Open source | No | No |
| Platforms | Android, iOS, macOS, Web | Android, iOS, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Paid from | — | 40 /mo |
| Comprehension practice | — | Yes |
| Age range | — | K–12, ESL, SPED, and adult education |
| Content format | — | mixed |
| Offline access | — | No |
| Supported platforms | — | web, Windows, macOS, iOS, Android |
Both are listed in Best Reading Apps. On Inferse, Duolingo scores higher on our published basis.