Apple launches two new features for App Store product pages.
Product page optimization. Try out alternate versions of your app's product page with different icons, screenshots, and app previews to find out which one gets the best results. Each version is shown to a percentage of randomly selected, eligible App Store users and results appear in App Analytics, so you can set the best performing one to display to everyone on the App Store.
Custom product pages. Create additional versions of your app's product page to highlight specific features or content, discoverable through unique URLs that you share. Custom product pages can have different screenshots, app previews, and promotional text — and are fully localizable — so you can showcase a particular sport, character, show, gameplay feature, and more.
More information on product page optimization and custom product pages is available for developers.
Apple Developer: New features for App Store product pages now available