Hypothesis vs PropEr
| Hypothesis | PropEr | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | — |
| Free plan | Yes | Yes |
| Supported languages | Python | Erlang |
| Test runner support | pytest, unittest | EUnit, Common Test |
| Failing-case shrinking | Yes | Yes |
| Stateful testing | Yes | Yes |
| Reproducible failures | Yes | — |
Both are listed in Best Property-Based Testing Tools. On Samsung Mobile US Press, Hypothesis scores higher on our published basis.