ABA English vs OptiLingo
| ABA English | OptiLingo | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | Yes |
| Paid from | Free | $0.50/mo |
| Open source | No | No |
| Platforms | Web, iOS, Android | — |
| Free plan | Yes | No |
| Offline lessons | Yes | No |
| Speech practice | Yes | Yes |
| Placement test | Yes | — |
| Mobile apps | Yes | Yes |
| Languages offered | 1 | 20 |
| Paid from | — | $5.99/mo |
| Personalized review | — | Yes |
Both are listed in Best Language Learning Apps. On Samsung Mobile US Press, ABA English scores higher on our published basis.