Remote Config in Android Kotlin - Build, Publish & Deploy

Build & Publish - Remote Config

Performance Impact of Remote Config

Using Remote Config allows your app to change behavior and appearance without updating the app. Fetching config values happens asynchronously, so it usually does not block the UI thread.

However, frequent or large fetches can increase network usage and battery drain. Cache fetched values to avoid repeated network calls. The UI frame rate remains smooth if you update UI only after config fetch completes.

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How to Optimize Remote Config for 60fps Rendering

Fetch Remote Config values in the background during app startup or idle times. Avoid blocking the main thread.

Apply config changes only when fetch is complete and values are validated. Use lightweight data types (strings, booleans, numbers) to minimize parsing time.

Cache values locally and update UI reactively to prevent jank or frame drops.

Impact on App Bundle Size and Startup Time

Remote Config SDK adds a small size overhead (usually under 1MB) to your app bundle.

Fetching config remotely does not increase app size but can affect startup time if you wait for config before showing UI. To keep startup fast, show cached or default values first, then update UI after fetch.

iOS vs Android Differences for Remote Config

Both platforms support Remote Config with similar APIs via Firebase.

On Android, Remote Config uses Kotlin/Java SDK and integrates with Jetpack components easily.

On iOS, Remote Config uses Swift/Objective-C SDK and integrates with UIKit or SwiftUI.

Network policies and background fetch behavior differ slightly; Android allows more flexible background fetch, while iOS may limit background activity.

Relevant Store Review Guidelines and Requirements

• Ensure Remote Config does not enable hidden or unauthorized features violating store policies.
• Do not use Remote Config to change app behavior to bypass content or age restrictions.
• Respect user privacy: do not fetch or expose sensitive data via Remote Config.
• Follow Google Play and Apple App Store guidelines on dynamic content and remote updates.

Self-Check: Your App Takes 5 Seconds to Load This Screen. What's Likely Wrong?

You might be waiting for Remote Config fetch to complete before showing UI. This blocks startup and delays rendering.

Solution: Show cached or default config values immediately, then update UI after fetch finishes asynchronously.

Key Result

Remote Config enables dynamic app updates with minimal performance impact when used asynchronously and cached properly. Avoid blocking UI on fetch to maintain smooth 60fps rendering and fast startup.