Free (as in libre and gratis) tools to help you run better experiments.
Plan your experiment duration and sample size. Get accurate estimates based on your traffic, conversion rate, and target detectable improvement.
14
days
9,254
per variant
Check if your A/B test traffic was correctly distributed. Detect Sample Ratio Mismatch that could invalidate your experiment results.
Visualise why peeking at significance levels during experiments drastically increases your false positive rate.
Let your tests cook!