Complete guide to iOS app icon sizes in 2026

Getting iOS app icon sizes right is one of those tasks that sounds simple but can catch you off-guard right before submission. Apple requires a specific set of sizes for different contexts — the home screen, the App Store, Spotlight search, and Settings — and a single missing size will get your submission rejected.

This guide covers every iOS icon size you need in 2026, explains what each is used for, and shows you how to export them all in one click using App Icon Studio.

Why does Apple require so many sizes?

iOS displays app icons at different sizes depending on the context: a large icon in the App Store listing, a smaller one on the home screen, an even smaller one in Spotlight search results, and a tiny one inside the Settings app. Each context uses a different pixel dimension, so Apple requires you to supply all of them explicitly rather than downscaling from a single source.

Additionally, iOS devices have different screen resolutions — @1x, @2x, and @3x — so each logical size needs up to three physical pixel variants.

Complete iOS icon size reference

Below is every icon size required for a universal iOS app submission in 2026.

What is a Contents.json file?

When you import icons into Xcode via the Assets.xcassets catalog, Xcode needs a Contents.json file that maps each filename to the correct slot (usage + resolution). Without it, Xcode won't know which file goes where.

App Icon Studio automatically generates this file and includes it in your export ZIP. To use it: unzip the export, open your Xcode project, navigate to Assets.xcassets → AppIcon, and drag the entire exported folder in. Xcode will pick up all files and the manifest automatically.

Design tips for iOS icons

• No transparency. Apple rejects icons with transparent backgrounds. Use a solid fill.
• No rounded corners in your source image. iOS applies its own corner mask. Designing rounded corners into the image will create a double-rounding effect.
• Test at small sizes. Your 1024px icon looks great — but check the 60px version. Complex artwork often becomes unreadable at home-screen size.
• Bold, simple shapes. Icons with one or two recognisable shapes at the center perform better than intricate designs.
• High contrast. Icons need to stand out against both light and dark wallpapers and alongside competitor apps.

How to export all iOS sizes in one click

Rather than manually resizing your image ten times, use App Icon Studio to generate the full set automatically:

• Upload your 1024×1024 image
• Customize background color, padding, and shape
• Check the iOS checkbox in the export panel
• Click Generate Export Plan
• Download the ZIP and drop the folder into Xcode