How to Create App Store Screenshots from Phone Captures 日本語ガイド
日本語の create app store screenshots from phone captures ガイド: A practical local workflow for turning raw iPhone or Android captures into App Store and Google Play marketing screenshots.
A raw simulator or phone capture proves that your app works. A store screenshot needs to do one more job: explain the benefit quickly without hiding the real interface.
Start with real, high-resolution captures
Capture the most important user states at the highest resolution available. Choose screens that form a sequence: the problem, the main action, and the result. Avoid building five images that all show nearly the same dashboard.
Compose before you resize
Open the App Store Screenshot Composer, upload up to six captures. Each image keeps its own headline, subtitle, background, and template. Use the App Store / Google Play platform tabs and pick one export size at a time (phone, tablet, or Feature Graphic groups). The composer recalculates layout per ratio instead of stretching one finished image.
Use one short headline and an optional supporting line. Keep claims factual. Google Play discourages ranking, promotional, download-count, and “Install now” language in graphic assets.
Check every platform variant
- App Store phone and iPad artwork should be designed for their different proportions.
- Google Play phone screenshots commonly use 1080×1920, while accepted dimensions remain flexible.
- Google Play Feature Graphic is a separate 1024×500 horizontal asset—not a phone screenshot crop.
- Device frames are optional. Google Play may prefer imagery without device graphics for promotional surfaces.
Export the package
Review the size, transparency, text-area, source-resolution, and policy hints. Add a useful alt-text draft that describes what the interface shows. Choose PNG or JPEG for the currently selected export target (App Store defaults to PNG; Google Play to JPEG). Export all loaded screenshots at that size—one file directly or a zip when you have multiple images, each with its own copy and styling.
All image processing happens locally in the browser. If you already have completed artwork and only need exact-size validation or a same-ratio correction, use the App Market Image Resizer.