Hypothesis vs QCheck

Hypothesis

7.5 #4 in Property-Based Testing Tools

About Hypothesis

QCheck

6.3 #13 in Property-Based Testing Tools

About QCheck
HypothesisQCheck
Free planNoNo
Free trialNoNo
Paid from——
Open sourceNoNo
PlatformsLinux, macOS, Windows—
Free planYesYes
Supported languagesPythonOCaml
Test runner supportpytest, unittestQCheck_base_runner, QCheck_runner, OUnit, Alcotest
Failing-case shrinkingYesYes
Stateful testingYesYes
Reproducible failuresYes—

Both are listed in Best Property-Based Testing Tools. On Samsung Mobile US Press, Hypothesis scores higher on our published basis.