growthstack / self-hosted experimentation & feature flags

What is a lift worth on your traffic?

Five questions, about two minutes. The estimate on the right updates as you answer. Submit and we reply within one business day with a lift model for your profile and a personal sandbox link — a live environment, not a video.

Your traffic profile

Where to send the sandbox link

Used once, to send your estimate and sandbox link. No list, no sequence.

Estimated monthly impact

checkout-lift · your inputswaiting for inputs
control · today$ —
+3% relative lift＋$ —
+5% relative lift＋$ —
annualized at +5%: $ —

No conversion tracking yet — assuming 2.5% for the estimate. Measuring it is week one of any POC.

minimum sample to detect +5% at 80% power: — sessions per variant
at your traffic that is roughly — of a 50/50 test

Received

Your estimate is on its way.

We reply within one business day with a lift model built on your ranges and a personal sandbox link — a token-gated live environment where you can run these scenarios yourself.