App Store screenshots must match accepted device dimensions, use JPG or PNG, and appear in the order you want users to see. The first frames matter most because they appear in search and drive conversion before users read the app description.
What to check first
Start with the store requirement, then move to conversion quality. A screenshot can pass upload validation and still fail to persuade users.
Prepare one compliant iPhone set first, then add iPad and localization only if your app supports those markets.
iOS app makers preparing App Store Connect assets.
Use AI-generated composition when you need better screenshots without hiring a designer or rebuilding layouts manually.
Practical breakdown
| Area | What matters | Why it matters |
|---|---|---|
| Format | PNG or JPG | Avoid alpha and blurry scaling |
| Count | 1-10 screenshots | Use 5 strong frames first |
| Order | Most important first | Frame one should sell the outcome |
Recommended five-frame structure
Start with the strongest promise a user can understand in under two seconds.
Show the actual app UI doing the thing users came for.
Add progress, reviews, safety, data clarity, or another proof point that fits the category.
Show the feature that differentiates the app from similar listings.
End with a next step, premium value, localization, or platform-specific benefit.
Common mistakes
- Leading with an empty state instead of a filled, believable product screen.
- Using headline text that only works at full-size export, not in store thumbnails.
- Copying a template style that does not match the app category or audience.
- Forgetting that App Store and Google Play users scan visuals before reading descriptions.
FAQ
What is the best way to handle app store screenshot requirements?
App Store screenshots must match accepted device dimensions, use JPG or PNG, and appear in the order you want users to see. The first frames matter most because they appear in search and drive conversion before users read the app description.
Can Nuvex help with this workflow?
Yes. Nuvex uses AI composition to generate App Store and Google Play screenshots around your uploaded UI, app category, and positioning. It is useful for iOS app makers preparing App Store Connect assets.
Should I use a template or AI-generated screenshots?
Use a template if you already know the exact layout and only need export help. Use AI generation when you need the tool to write headlines, choose composition, and create a polished direction quickly.
Turn this strategy into finished screenshots.
Nuvex uses prompt-engineered AI composition to create store-ready App Store and Google Play screenshots from your real app screens.
Start with 6 free credits