iOS app screenshot generator: best practices for 2026
Templates and device mockups only get you halfway. These are the layout decisions that actually move App Store conversion.
The rules that hold up in real data
The 3-second rule
Most visitors decide from the first screenshot without reading anything. Lead with your core value, in large text.
First three win
Only the first three screenshots show in App Store search results — put your strongest message there, not slide seven.
Captions above the device
Eyes scan top-first in store listings — headline on top, device below, never the reverse.
Localize the text layer
Translated headlines routinely lift conversion in non-English storefronts — not just the in-app text.
One visual story, not five posters
A consistent background system — same gradient family, same font, same device angle — across all your screenshots reads as one deliberate brand. Randomly varied styles per slide read as unplanned, even if each individual screenshot looks fine on its own.
Guideline 2.3.3
Apple requires screenshots to show the app actually in use — pure marketing graphics with no real UI risk rejection under App Review Guideline 2.3.3. Your device mockup should contain a genuine app screen, not an abstract illustration.
Frequently asked
Which screenshots matter most?
The first three — they're what shows in App Store search results before a tap-through.
Should captions go above or below the device?
Above — users scan top-first in store listings.
What sizes do I need to export?
See our screenshot dimensions cheat sheet for the full 2026 spec.