Plausible vs Proptest
| Plausible | Proptest | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | Web |
| Free plan | Yes | Yes |
| Supported languages | Lean 4 | Rust |
| Test runner support | Lean 4 tactic framework | Rust test harness ([test]); TestRunner |
| Failing-case shrinking | Yes | Yes |
| Stateful testing | — | Yes |
| Reproducible failures | — | Yes |
Both are listed in Best Property-Based Testing Tools. On Specifiction, Proptest scores higher on our published basis.