With over 70% global smartphone market share, Android is non-negotiable for most consumer apps. Here's how to plan, build, and launch one without costly missteps.
Android's global reach makes it the default starting point for most consumer-facing apps — but "build an Android app" covers a huge range of decisions, from native Kotlin to cross-platform frameworks, that materially affect cost, timeline, and long-term maintainability.
Native Kotlin vs Cross-Platform: The Real Decision Criteria
- Choose native Kotlin when you need deep hardware integration, best-in-class performance, or are Android-only with no iOS plans
- Choose Flutter or React Native when you need both iOS and Android from one codebase and your UI doesn't demand bleeding-edge native features
- Choose native when your app is heavily tied to Android-specific APIs (widgets, deep system integrations, Wear OS companion apps)
The Android Fragmentation Reality
Unlike iOS's relatively controlled device ecosystem, Android apps must perform acceptably across thousands of device and OS-version combinations — from budget phones with 3GB RAM to flagships. Testing on a representative device matrix, not just an emulator, is non-negotiable for a quality launch.
Budget at least 15–20% of your development timeline for device-specific testing and fixes — fragmentation-related bugs are the most common cause of post-launch one-star reviews.
Google Play Store Launch Checklist
- 1Complete Play Console developer account verification (can take days — start early)
- 2Prepare store listing assets: screenshots across device sizes, a feature graphic, and a clear, keyword-aware description
- 3Implement Google Play Billing correctly if you have in-app purchases — review rejections here are common
- 4Test the production build through Play Console's internal and closed testing tracks before public release
- 5Set up crash reporting (Firebase Crashlytics) before launch, not after the first bad review
Cost and Timeline Expectations
A focused MVP Android app with core features typically takes 8–12 weeks to build and launch. Adding backend infrastructure, payment integration, and admin dashboards extends that to 14–20 weeks. Plan for ongoing maintenance budget — Android OS updates and Play Store policy changes require continuous attention.
