Castmagic vs Letterfork
| Castmagic | Letterfork | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web, iOS | Web |
| Free plan | No | Yes |
| Paid from | 19 /mo | 9 /mo |
| Source formats | — | Substack, Beehiiv, Ghost URLs; pasted full text |
| Output formats | — | LinkedIn posts, X threads, Bluesky posts, Substack Notes, Threads posts, Instagram captions, Reddit drafts |
| Social publishing | — | No |
| Newsletter output | — | No |
Both are listed in Best AI Content Repurposing Tools. On Samsung Mobile US Press, Castmagic scores higher on our published basis.