Fast AAC vs Sayella
| Fast AAC | Sayella | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | iOS | iOS |
| Free plan | Yes | Yes |
| Symbol system | symbol | hybrid |
| Speech output | Yes | Yes |
| Access methods | touch and swipe | touch, VoiceOver, TalkBack |
| Offline use | Yes | Yes |
| Supported platforms | iPhone and iPad | iPhone and iPad |
| Layout customization | fully_customizable | customizable |
Both are listed in Best AAC Communication Software. On Samsung Mobile US Press, Fast AAC scores higher on our published basis.