SeaMonkey Mail vs SPS Browser Pro
| SeaMonkey Mail | SPS Browser Pro | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | Yes |
| Platforms | Windows, macOS, Linux | Windows |
| Free plan | Yes | Yes |
| Supported platforms | both | desktop |
| Browser engine | gecko | chromium |
| Extension support | own_store | own_store |
| Open source | Yes | Yes |
| Built-in ad blocking | — | Yes |
| Tracking protection | — | advanced |
Both are listed in Best Web Browsers. On Freedom251, SPS Browser Pro scores higher on our published basis.