Score your test ideas by Impact, Confidence and Ease, auto-rank them by ICE, and get a written hypothesis for each — so you stop testing tiny tweaks and run the high-leverage bets first.
Yes — completely free and unlimited. It runs entirely in your browser, so there's no credit cost and no sign-up.
ICE ranks ideas by the average of three 1–10 scores: Impact (how much it could move your metric), Confidence (how sure you are), and Ease (how quick and cheap it is to run). Higher ICE = do it sooner. It's a fast, widely-used prioritisation framework.
No — it's a prioritisation heuristic based on your own estimates, not a forecast. It helps you decide what to test first; the actual test tells you what works. Garbage-in, garbage-out: score honestly.
A good test starts with a clear hypothesis — what you're changing, the effect you expect, and how you'll measure it. The tool drafts one for each idea from your inputs so you can paste it straight into your test plan.