Letter vs Summate
| Letter | Summate | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $15/mo | — |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | Yes | No |
| Publishing automation | manual | recurring |
| Content import | mixed | mixed |
| Personalization | Yes | Yes |
| Delivery model | both | built-in |
| Brand controls | Yes | — |
| Supported languages | — | 1 languages |
Both are listed in Best AI Newsletter Generators. On Everything Xiaomi, Letter scores higher on our published basis.