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Build a Mobile App in 21 Days

Native-quality iOS and Android from one codebase — React Native + Expo, App Store ready, fixed price.

Book a Free Scoping Call →Get a Quote

⏱ Delivery: 3–4 weeks

💰 Starting at: From $3,460

🔒 Fixed price — no surprises

Why Mobile App (iOS & Android) development is hard to get right

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Separate iOS and Android teams double cost and timeline — React Native ships both from one codebase

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App Store rejection for missing privacy policy, broken IAP, or incomplete onboarding kills launch momentum

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Push notifications, deep links, and offline mode are table stakes — freelancers often skip them

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Most mobile agencies quote $50K+ and 4–6 months for an MVP that should ship in 3 weeks

What we build — in detail

iOS + Android apps

Single React Native + Expo codebase. Native navigation, gestures, haptics. Builds for both stores from day one.

Authentication & onboarding

Email, Google, Apple Sign-In. Smooth onboarding flow with progress indicator and skip logic.

Push notifications

Expo Push for transactional and marketing notifications. Per-user preferences, deep link on tap.

Offline & performance

Optimistic UI updates, local cache for critical data, skeleton loaders, image lazy loading.

Payments (optional)

Stripe, RevenueCat for subscriptions, Apple/Google IAP via RevenueCat wrapper.

Analytics & crash reporting

PostHog or Mixpanel for product analytics. Sentry for crash reporting from launch day.

App Store submission

We handle App Store Connect and Google Play Console setup, screenshots guidance, and first submission.

Tech Stack

→React Native + Expo
→Supabase or custom API
→Expo Push
→RevenueCat (subscriptions)
→Sentry
→EAS Build

What you get

iOS app (App Store ready)
Android app (Play Store ready)
Full source code
Submission support
Technical documentation

Frequently asked questions

React Native or native Swift/Kotlin?

React Native for 95% of MVPs — one team, one codebase, 80% of native performance. We recommend Swift/Kotlin only for AR, heavy gaming, or platform-specific hardware (HealthKit, etc.).

Do you handle App Store review?

Yes — we prepare privacy policy, app description, screenshots specs, and submit. We fix rejection issues (usually privacy or metadata) at no extra charge within the MVP scope.