Compress PNG Images for App Store
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. Lossless image format that supports full alpha transparency. Best for logos, graphics, and images requiring sharp edges. Use ImageSmith to compress your PNG images to the ideal file size for App Store — target under 500KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
PNG
Max file size
500KB
Dimensions
1290×2796 (iPhone 15 Pro Max screenshots), 1024×1024 (app icon)
✓App icons must be exactly 1024×1024 PNG without transparency
✓Screenshot sizes vary by device — submit for each device category
✓Use PNG for screenshots with UI elements and sharp text
✓App Preview videos display before screenshots in the gallery