App Store and Google Play screenshot guides

Short, checked answers about App Store and Google Play screenshots: the sizes, the rules, and how to make a set. Each one is checked against Apple's and Google's own documentation, with the date.

• App Store screenshot sizesEvery iPhone, iPhone Duo, iPad, Apple Watch, Mac, Apple TV and Vision Pro size App Store Connect accepts, and which ones are required.
• Google Play screenshot requirementsSizes, formats, counts and the 9:16 rule Google Play uses to decide which apps it can promote.
• iPhone Duo screenshot sizeThe two App Store sizes for Apple's foldable, inner and outer display, and when they become required.
• Apple Watch screenshot sizeThe App Store screenshot size for every Apple Watch, from Series 1 to Ultra 4.
• How to make App Store screenshotsFrom a clean capture to a finished, uploaded set for the App Store and Google Play, step by step.