Put the strongest proof first. The first image should answer: what does this app do for me? Later images can show the workflow, a useful feature, and a result.
Use one idea per image. Keep text large, high contrast, and short. Do not promise something the app does not do. Create a message map before designing: user question, answer, and screen that proves it.
Apple lets developers test different product-page treatments with Product Page Optimization. Screenshots are a good experiment surface when traffic is sufficient.
Use this in your next ASO review
Turn the advice above into one small, traceable change. A simple review keeps your listing accurate and makes it easier to learn what helped.
- Open the current App Store Connect entry for your app and copy the app store screenshots material you want to check.
- Compare it with the current product behavior, supported locales, and the source linked below.
- Draft one improvement, record the reason, and validate every field limit or submission rule that applies.
- Ask a person to approve the draft before it changes a live listing.