What it does
GoodUI publishes interface patterns, A/B tests and experiment commentary. Tests can be browsed by screen type, topic and device, with sample and statistical-power information in the listings. Paid membership provides full test results, templates and custom meta-analyses.
GoodUI connects patterns to experiments that won or lost. Select a screen type such as Checkout or Signup, or a tag such as Forms, Pricing or Copy. Test listings describe the change, measured outcomes, sample size and statistical power at a stated minimum detectable effect.
The repeatability score rises or falls when another test of a pattern wins or loses. It is a record of the published tests, not a promise that the pattern will work in another product. The homepage also retains its original 75 design ideas, which it explicitly distinguishes as ideas based on intuition.
Membership choices
| Plan | Accounts | Main difference |
|---|---|---|
| Solo | 1 | Full tests, patterns, templates and custom meta-analyses |
| Team | Up to 5 | The same library for a small team |
| Expert-Guided | Unlimited | Adds a monthly written review of one test and a one-hour team call |
Choose annual or monthly billing on Get Access. Full membership is paid, while public ideas and test previews can be browsed without joining. The advertised 30-day results guarantee applies to the first payment of a monthly plan and requires sending the experiment to GoodUI; it is not a free trial.
Strengths
- Test listings identify the intervention, device and sample context
- The library includes losing tests as well as winners
- Expert-Guided adds review of a team’s own experiment
Watch out for
- Full test results require paid membership
- A pattern’s past results do not guarantee the same outcome elsewhere
- The results guarantee is limited to the first monthly-plan payment
Best for
- Teams developing interface experiment hypotheses
Sources
- GoodUI patterns and published experiments (Oct 27, 2026)
- GoodUI membership plans and FAQ (Oct 27, 2026)