Yes, if you have both. Distinguish them clearly in your skills section — native iOS (Swift/SwiftUI) and native Android (Kotlin/Jetpack Compose) are different skill sets from React Native or Flutter. Some roles specifically require native experience, so clarity here may prevent your resume from being filtered out.

Reference specific metrics: app launch time reduction, memory usage optimization, crash rate improvements, or battery usage. 'Reduced app cold start time from 3.2s to 1.1s through lazy loading and image caching' demonstrates performance engineering depth beyond standard feature development.

Download counts and ratings can be compelling if they're strong — 'shipped app with 4.8 App Store rating across 100K downloads.' Avoid including metrics that appear modest or unclear. If the app is publicly available, including its name allows reviewers to verify the work directly.