The iPhone 16 Pro Max App Store screenshot size is 1320 × 2868 pixels, at 3× device pixel ratio, in the 6.9″ Display slot on App Store Connect. That's the short answer. If you submitted screenshots last year and they were 1290 × 2796, they were for the 6.7″ slot (iPhone 15 Pro Max) — that slot is still valid, but Apple now requires the 6.9″ slot for any new app onboarding.

The rest of this post is the long answer: what the slot actually means, how the Dynamic Island math works, what counts as "Apple-required", and which size most teams should ship in 2026.

Why 1320 × 2868 specifically

The iPhone 16 Pro Max has a logical display size of 440 × 956 CSS pixels at @3x DPR. Multiply through and you get the physical screen resolution: 1320 × 2868. Apple's App Store Connect catalog organizes screenshots by physical resolution so they render pixel-perfect on the actual device — they aren't downsampled at upload time.

The same math: iPhone 16 Pro is 402 × 874 @3x = 1206 × 2622. iPhone 15 Pro Max is 430 × 932 @3x = 1290 × 2796. The 6.7″ slot covers iPhone 15 Pro Max because they share the same physical pixel count.

Dynamic Island and the safe-area math

The Dynamic Island on iPhone 16 Pro Max sits at the top of the screen, roughly 4.0% of the screen height from the top of the chrome and 3.4% tall. In 2868 px coordinates that's:

Top edge: ~115 px
Bottom edge: ~213 px
Width: ~28% of 1320 = ~370 px, horizontally centered

Plus the OS-reserved safe-area-inset at the top is roughly 177 px in physical pixels (59 pt × 3 DPR). Anything you draw above that line gets clipped by the system UI on real devices. Apple's review team explicitly checks for content collisions with the Island, so submissions that put a "Get started" button under the Island camera dot get rejected.

ScreenStack's iPhone 16 Pro Max device frame respects all of this — the Island is rendered at the correct pixel coordinates and the captured page is pushed below the safe-area zone if the source app uses env(safe-area-inset-top) via the SDK's CSS-var injection.

What Apple actually requires in 2026

New app submissions need:

6.9″ Display slot (iPhone 16 Pro Max) — 1320 × 2868 — required
6.7″ Display slot (iPhone 15 Pro Max) — 1290 × 2796 — required
12.9″ Display slot (iPad Pro) — 2048 × 2732 — required if you support iPad

Everything else is optional. App Store Connect will accept smaller iPhone slots (6.5″, 5.5″, 4″) and smaller iPad sizes, but they aren't required for a new submission. Apple downsamples your 6.9″ + 6.7″ shots for older devices automatically.

Upload rules

Up to 10 screenshots per slot.
PNG or JPG (PNG strongly preferred — lossless).
RGB color space, no alpha channel.
Filename is irrelevant to the upload.
Apple will silently reject screenshots that don't match the slot's exact pixel dimensions. There's no resize tolerance.

What most teams should ship in 2026

If you're optimizing time-to-store, the 6.9″ slot (1320 × 2868) is the single most impactful asset. Ship at least 3 screenshots there — the first three are what shows up in search results on every iPhone. Then add the 6.7″ slot for the long tail of users still on iPhone 15 Pro Max or earlier.

If you also support iPad, the 12.9″ slot (2048 × 2732) is required and most teams ship 5 there. Anything beyond that — 11″ iPad, iPad mini, smaller iPhone slots — is diminishing returns unless you have specific marketing reasons.

How ScreenStack handles this

You configure one source capture in screenstack.yml. ScreenStack composites it inside the iPhone 16 Pro Max device frame at 1320 × 2868 with brand backdrop and caption, then exports the same composition at 1290 × 2796 for the 6.7″ slot and 2048 × 2732 for iPad Pro automatically. The full reference of every dimension we support is on /screenshot-sizes.

iPhone 16 Pro Max screenshot size in 2026: 1320 × 2868 explained