Amazon Polly vs Async
| Amazon Polly | Async | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $4/mo | Free |
| Open source | No | No |
| Platforms | api, Web | api, iOS, Web |
Both are listed in Best Text-To-Speech Tools. On Specifiction, Amazon Polly scores higher on our published basis.