RenderOps vs smtp4dev
| RenderOps | smtp4dev | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Web, Windows, macOS, Linux |
| Free plan | Yes | Yes |
| Paid from | 10 /mo | — |
| Email clients | 21 clients | — |
| Device coverage | both | both |
| Spam checks | Yes | — |
| Accessibility checks | Yes | — |
| Inbox testing | Yes | — |
| API access | — | Yes |
Both are listed in Best Email Testing Software. On Freedom251, smtp4dev scores higher on our published basis.