Tomorrowish · iPhone Duo screenshot sizes

Duo Shots

Drop in raw captures from the iPhone Duo simulator, write a caption for each, and download App Store screenshots at Apple's exact iPhone Duo sizes: 1398 × 2034 or 2034 × 1398 for the outer display, 2007 × 2853 or 2853 × 2007 for the inner display.

Your images never leave this page: framing happens in your browser and nothing is uploaded. Exports are RGB PNG with no alpha channel (or JPEG), which is what App Store Connect accepts. Not affiliated with Apple; "iPhone Duo" is used only to name the screen sizes.

1. Your captures

Drop PNG or JPEG captures here, or tap to choose Outer and inner, portrait and landscape can be mixed. Each one is matched to its display by size; change it if needed. Up to 10 per display.

Samples are iPhone 6.9" captures of one of our apps in Duo-sized frames, for trying the tool only.

No captures yet.

2. Look

Style A: framed screen on your colour Style B: light page, big screen

Brand colour Highlight colour derive highlight App name (for file names) Format

Put a word in *asterisks* to colour it with the highlight colour, e.g. Stay *awake* on long drives.

3. Export

Free: preview everything, and export 2 screenshots per style with a small "made with Duo Shots" corner tag.

What comes out

Style A sample, outer display portrait, 1398 by 2034 — Style A · outer, portrait

Style B sample, inner display portrait, 2007 by 2853 — Style B · inner, portrait

Style A sample, inner display landscape, 2853 by 2007 — Style A · inner, landscape

Samples: these use iPhone 6.9" captures of one of our apps (Keep Me Awake, demo data) placed in Duo-sized frames, so the screen looks narrow. Real Duo captures fill the frame. Sizes and output format are exactly what the tool exports.

Getting the raw captures

Boot the iPhone Duo simulator (Xcode 27.1 with the iOS 27.1 simulator runtime), open your app with demo data, and save each display:

xcrun simctl io booted screenshot --display=primary   outer.png   # outer display
xcrun simctl io booted screenshot --display=primary-1 inner.png   # inner display

Display names as reported for the Xcode 27.1 simulator; xcrun simctl list devices and xcrun simctl io booted screenshot --help show yours. Transparent corners from --mask=alpha are filled in, so any mask works. Full details, every size and the April 2027 rule: iPhone Duo screenshot sizes.