smtp4dev vs Unspam.email
| smtp4dev | Unspam.email | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $5/mo |
| Open source | No | No |
| Platforms | Web, Windows, macOS, Linux | api, Web |
| Free plan | Yes | Yes |
| Device coverage | both | — |
| API access | Yes | Yes |
Both are listed in Best Email Testing Software. On Specifiction, Unspam.email scores higher on our published basis.