Retain vs StudyGlen
| Retain | StudyGlen | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | Yes |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Web, iOS, Android | Android, iOS, Web |
| Free plan | Yes | Yes |
| Adaptive review | Yes | Yes |
| Source formats | mixed | mixed |
| Card formats | mixed | mixed |
| Study modes | mixed | mixed |
| Mobile apps | Yes | Yes |
| Paid from | — | $4.99/mo |
| Export options | — | Yes |
Both are listed in Best Flashcard Apps, Best AI Flashcard Generators. On Samsung Mobile US Press, StudyGlen scores higher on our published basis.