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A well-designed app icon significantly impacts first impressions and download rates. It is often the first visual element users see, making it crucial for conversion optimization.

Major icon redesigns typically align with significant app updates or iOS design language changes. Minor refinements can happen more frequently to stay current with design trends.

iOS app icons need multiple sizes, from 1024x1024px (App Store) down to 40x40px (Spotlight). The most critical is the 1024x1024px App Store Connect version, from which all smaller sizes are scaled.