Compress Images for App Store — Free & Instant
App Store screenshots and icons are the primary conversion drivers for app downloads. Properly optimized at exact dimensions, they display crisply on all device screen sizes. Use ImageSmith's free image optimizer to compress your App Store images directly in your browser — no account needed, no watermarks, and no ads. Target under 500KB per image for best results on App Store.
Max File Size
500 KB
Recommended Format
PNG
Dimensions
1290×2796 (iPhone 15 Pro Max screenshots), 1024×1024 (app icon)
App Store Compression Tips
- 1.App icons must be exactly 1024×1024 PNG without transparency
- 2.Screenshot sizes vary by device — submit for each device category
- 3.Use PNG for screenshots with UI elements and sharp text
- 4.App Preview videos display before screenshots in the gallery