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    Published: Dec 31, 2025Last updated: Feb 11, 2026

    Android App Development
    Reaching Billions of Users

    Android powers over 70% of smartphones worldwide. This guide covers development approaches, tools, and strategies for building successful Android applications.

    Kotlin & JavaReact NativeGoogle Play StoreMaterial Design

    The Android Opportunity

    Android dominates global smartphone market share, running on devices from budget phones to flagship Samsung Galaxy and Google Pixel devices. With over 3 billion active devices, Android offers unparalleled reach for mobile applications.

    Native Android development uses Kotlin (Google official preferred language) or Java, with modern UI built using Jetpack Compose or the traditional View system. This approach provides maximum performance and complete platform API access.

    Cross-platform development using React Native or Flutter allows Android development alongside iOS from shared code. For many applications, this provides excellent Android quality with significantly reduced development effort.

    Fastshot generates React Native code that compiles to native Android applications. The result is indistinguishable from native apps to users and distributable through the Google Play Store.

    Android Development Approaches

    AspectNative KotlinReact NativeFlutter
    LanguageKotlin/JavaJavaScript/TypeScriptDart
    IDEAndroid StudioVS Code, othersVS Code, Android Studio
    Android API accessCompleteMost via modulesMost via plugins
    UI frameworkJetpack Compose/ViewsNative componentsCustom rendering
    iOS versionSeparate projectSame codebaseSame codebase
    Hot reloadLimitedFull supportFull support

    Publishing to Google Play Store

    1

    Create Developer Account

    Register for a Google Play Developer account ($25 one-time fee). This provides access to the Google Play Console for app management and distribution.

    2

    Prepare Your App Listing

    Create your app in Play Console. Write descriptions, choose categories, upload screenshots and feature graphics. Prepare privacy policy if your app collects data.

    3

    Configure App Signing

    Set up app signing with Google Play App Signing (recommended) or manage your own keys. This secures your app updates and protects against tampering.

    4

    Build Release APK/AAB

    Generate a signed Android App Bundle (AAB, preferred) or APK for release. With Fastshot, cloud builds handle this automatically.

    5

    Submit for Review

    Upload your build to Play Console and submit for review. Google reviews for policy compliance, typically completing within hours to a few days.

    6

    Monitor and Update

    After launch, monitor crash reports, user reviews, and performance metrics in Play Console. Plan regular updates to address feedback and add features.

    Android Development Considerations

    Device Fragmentation

    Android runs on thousands of device models with varying screen sizes, hardware capabilities, and OS versions. Test on multiple devices or use Firebase Test Lab.

    Material Design

    Google Material Design guidelines define Android visual language. Following Material Design ensures your app feels native and familiar to Android users.

    OS Version Support

    Decide which Android versions to support. Targeting Android 7+ covers approximately 95% of active devices. Older versions limit available APIs.

    Background Processing

    Android restricts background execution to preserve battery. Use WorkManager for deferred tasks and understand Doze mode implications.

    Android Development FAQ

    Build Your Android App

    Fastshot generates Android-ready React Native code. Our cloud builds create Play Store-ready AAB files automatically.

    About the Author

    Elvira Dzhuraeva is an expert in AI mobile app development and React Native. A former Senior Product Manager at Google specializing in AI/ML and Generative AI, she is the Founder of Fastshot (YC-backed) and a founding contributor to Kubeflow.

    AI Mobile App DevelopmentReact NativeAI Developer ToolsVibecodingAI/ML Ops