App Store Connect submission in iOS Swift - Build, Publish & Deploy

Build & Publish - App Store Connect submission

Performance Impact

Submitting your app to App Store Connect does not directly affect app runtime performance like frame rate or memory. However, preparing your app for submission encourages you to optimize your app's startup time and resource usage, which improves user experience and battery life.

Ensuring your app runs smoothly at 60fps and uses memory efficiently helps pass Apple's review and provides a better user experience.

Optimization Tips

Before submission, optimize your app by:

• Profiling startup time and reducing unnecessary work on launch.
• Minimizing memory usage to avoid app crashes.
• Using asset catalogs and image compression to reduce load times.
• Testing on real devices to ensure smooth animations and responsiveness.
• Removing unused code and resources to keep the app lean.

App Bundle Size and Startup Time

App Store Connect requires you to upload a signed app bundle (IPA). Large bundles increase download time and storage use on devices.

Keep your app size small by:

• Using app thinning and on-demand resources.
• Compressing images and assets.
• Removing unused frameworks and code.

Smaller apps start faster and are more likely to be downloaded by users.

iOS vs Android Differences

App Store Connect is specific to iOS apps. Key differences include:

• iOS requires code signing with a valid Apple Developer certificate before submission.
• App Store review typically takes 24-48 hours, sometimes longer.
• Android uses Google Play Console with faster review times and different signing requirements.
• iOS apps use .ipa bundles; Android apps use APK or AAB files.

Store Review Checklist

Before submitting to App Store Connect, ensure:

• Your app complies with Apple's App Store Review Guidelines.
• All required metadata (app name, description, screenshots) is complete and accurate.
• Your app supports required device orientations and accessibility features.
• Privacy policies and user data handling meet Apple's requirements.
• You have tested the app on real devices and fixed crashes or bugs.

Self-Check Question

Your app takes 5 seconds to load this screen. What's likely wrong?

• Too much work is done on the main thread during startup.
• Large images or resources are loaded synchronously.
• Unoptimized code or heavy network calls block UI rendering.
• Missing lazy loading or deferred initialization.

Key Result

Submitting your iOS app via App Store Connect requires careful preparation including code signing, app optimization for smooth performance, and compliance with Apple's guidelines to ensure a smooth review and great user experience.