In retail your product photography is already doing the visual work. The job of the screenshot set is to answer one question the website cannot: why install the app at all.
Generate a retail gallery
Notice what is missing: there is no frame for “browse our 40 categories”.
Retail is the one category where the screen inside the frame is more visually interesting than anything you could put around it. Keep the backdrop calm and let the merchandise carry the composition — Brand Match, not Bold Contrast.
Almost everyone browsing your listing has already used your website. App-only prices, saved payment, order tracking, barcode scanning, push alerts for restocks — one of these should be a frame on its own.
Search, product, checkout. Three frames showing how few steps it takes converts better than six showing category browsing, because the friction of checkout is the thing people are avoiding.
A grid of grey rectangles labelled "Product Name" is a rejection risk and a credibility problem. Use your actual catalogue, with real prices and real images.
A screenshot showing a discount you are not currently running, or a price that excludes a mandatory fee, is a policy problem on both stores as well as a consumer-protection one.
A German listing showing dollar prices tells a browser the app is not for them, even when the headline above it is in perfect German. Currency, sizing conventions and delivery language all live inside the framed screen.
Every one of these is about friction removed, not about the range you stock.
Your actual merchandise first, then the reason to use the app rather than the mobile website, then how short the path to checkout is. Category browsing screens are the least persuasive frames in a retail gallery and usually take up the most room.
The frame around the device should be calm, because the screen inside it is already dense with product imagery. This is the category where a loud gradient backdrop actively fights the thing you are selling.
Only prices and promotions that are currently accurate for the person seeing them. A screenshot advertising a discount that has ended is a policy problem on both stores, and screenshots are reviewed alongside your binary.
For retail, more than most categories — currency, sizing conventions, delivery promises and available inventory all differ. Localising the headline while leaving dollar prices inside the frame undoes most of the benefit.
Five to seven. The gallery is a shop window, not a catalogue; a browser who is still scrolling at frame eight has already decided, one way or the other.
Currency and format handling per market is covered in localised screenshots.