Eris vs PropEr
| Eris | PropEr | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | — | self-hosted |
| Free plan | Yes | Yes |
| Supported languages | PHP | Erlang |
| Test runner support | PHPUnit | EUnit, Common Test |
| Failing-case shrinking | Yes | Yes |
| Reproducible failures | Yes | — |
| Cases per run | 100 cases | — |
| Stateful testing | — | Yes |
Both are listed in Best Property-Based Testing Tools. On Specifiction, Eris scores higher on our published basis.