Conversion, checked against the research

A/B test findingsA/B test findings

What large testing programs report about A/B tests, and how to read your own results without fooling yourself.

Open the topic: A/B test findings

AOV & upsellsAOV & upsells

Free-shipping thresholds and decoy prices: what published studies say about order value, and where they stop.

Open the topic: AOV & upsells

Colour psychologyColour psychology

What colour research supports, what it does not, and how far either one reaches into a store.

Open the topic: Colour psychology

Contrast & accessibilityContrast & accessibility

Contrast ratios and tap target sizes: the WCAG numbers, and how to check them on your own store.

Open the topic: Contrast & accessibility

Fonts & breathing spaceFonts & breathing space

Line length, line height and text spacing: what the standard asks for, and what the research adds.

Open the topic: Fonts & breathing space
Find your store’s fix

Every app has a free plan.

Our goal is to solve problems. No problem is too big: we split big ones into smaller ones and solve them too.