One upload, three answers: which store slots accept each screenshot, how they read at real search size, and what a device frame would crop.
Submission Coverage
Play tablet slots follow the same rules at tablet resolutions. Color profiles are not readable in a browser; confirm sRGB or Display P3 in your editor.
Click a thumbnail to remove it. Order is drop order; the first screenshot carries the search card. The previews use your first six.
App Store Search
Most visitors decide from the three-screenshot search card without ever opening your listing. If a caption is hard to read here, it will be hard to read in the store.
App Store Product Page
The gallery a visitor swipes after tapping through. Larger, but still far smaller than your design canvas.
Google Play Listing
Play crops the strip shorter and shows more of it at once. Wide captions survive; tall stacked text does not.
Rendered at iPhone-viewport point sizes (390pt wide): search screenshots at 111px, the product page at 232px, the Play strip 154px tall. On a phone this page shows true scale; on a desktop the pixel counts are identical.
The bright window is what the frame keeps; drag it, or double-click to re-center. Upscale numbers assume the screenshot editor’s default layout: the device drawn at 85% of a 1290×2796 App Store export. Frame geometry comes straight from the editor’s templates, so these numbers and the editor cannot drift apart.