Technologies·Mobile

React Native - Business Compendium

Q: Is React Native performant enough for production apps?

Yes. RN achieves 90-95% of native app performance with proper architecture. Key is avoiding unnecessary re-renders, image optimization and using native modules for critical operations.

Q: How long does migration from native app to React Native take?

Depends on complexity. Simple app: 3-6 months. Complex with many integrations: 6-12 months. We recommend incremental approach - module by module migration.

Q: Can we use existing native libraries in React Native?

Yes, through bridge. Most popular libraries already have ready wrappers (e.g. Stripe, Firebase). For custom solutions we create our own bridges.

Technology that shortens time and improves quality

GMI Software is a Gdansk-based agency specializing in React Native and Expo for EU, UK and US companies. The SFD app: 100,000+ downloads, 4.9★ App Store. Initial mobile app estimate within 48 hours.

As a team specializing in React Native, we help match technology to business goals. Below we've gathered practical information to help understand when RN is the best choice.

Last updated: July 2, 2026

Service

Mobile apps for iOS & Android

End-to-end: UX, development, store releases, maintenance — React Native is often the core.

Resources

React Native hub

Dedicated overview, open source, and technical context.

Why US and EU teams hire GMI Software for React Native

Poland nearshore: rates often 30-50% below a typical US agency with Western Europe timezone overlap (CET). English delivery, 2-week sprints and demos every iteration.

Clutch 4.9★ and 120+ delivered projects
One partner: mobile + backend + commerce (Medusa)
Fixed-price guarantee after DDT workshop
6+ hours overlap with UK and continental Europe

Last updated: July 2, 2026

How much does a React Native app cost in 2026?

Loyalty / simple B2C MVP

EUR 18,000 - 28,000

3-5 months, iOS + Android

Commerce app with integrations

EUR 35,000 - 55,000

5-8 months, ERP/payments

CRM / field operations mobile

EUR 45,000 - 70,000

6-10 months, offline + roles

USD reference (MVP)

USD 20,000 - 32,000

international clients

Scope	Range	Notes
Loyalty / simple B2C MVP	EUR 18,000 - 28,000	3-5 months, iOS + Android
Commerce app with integrations	EUR 35,000 - 55,000	5-8 months, ERP/payments
CRM / field operations mobile	EUR 45,000 - 70,000	6-10 months, offline + roles
USD reference (MVP)	USD 20,000 - 32,000	international clients

Ranges after a DDT scope review. Final cost depends on integrations, offline flows, IoT and compliance. Based on GMI Software delivery data (120+ projects).

Share your scope — we will confirm a range in 48h

React Native vs Flutter vs native - when to pick what?

MVP time-to-market

React Native + Expo: 8-14 wks
Flutter: 10-16 wks
Native iOS + Android: 16-24 wks

Cost vs dual native

React Native + Expo: -30-40%
Flutter: -25-35%
Native iOS + Android: 100% baseline

Native API access

React Native + Expo: Bridge + Expo modules
Flutter: Platform channels
Native iOS + Android: Full

Web team synergy (React)

React Native + Expo: High
Flutter: New Dart stack
Native iOS + Android: Swift + Kotlin

GMI default pick

React Native + Expo: Most B2B/B2C
Flutter: Existing Flutter team
Native iOS + Android: 3D/AR, gaming

Criterion	React Native + Expo	Flutter	Native iOS + Android
MVP time-to-market	8-14 wks	10-16 wks	16-24 wks
Cost vs dual native	-30-40%	-25-35%	100% baseline
Native API access	Bridge + Expo modules	Platform channels	Full
Web team synergy (React)	High	New Dart stack	Swift + Kotlin
GMI default pick	Most B2B/B2C	Existing Flutter team	3D/AR, gaming

When is React Native with GMI not the best fit?

Gaming, 3D or AR at native level
For heavy 3D or AR experiences, native stacks or a game engine are often a better fit.
Your team already ships only Flutter/Dart
If hiring and delivery are Flutter-only, switching to RN without a business reason slows delivery.
Very small scope with no growth plan
For a tiny PoC without backend integrations a freelancer may suffice - we focus on production apps.

Related guides

When React Native is the best choice

RN works well in projects where priority is fast time-to-market and lower maintenance costs while maintaining high UX quality.

Loyalty and e-commerce apps requiring rapid iterations
Sales and CRM apps with complex UX
Products requiring frequent updates and A/B testing
B2B apps for internal processes with integrations
Customer portals and apps with external system integrations
MVPs and prototypes requiring quick deployment

When to consider alternatives

RN has its limitations - in some scenarios native solutions or other frameworks will be a better choice.

Apps requiring advanced 3D/AR/VR features
Gaming apps with high performance requirements
Projects requiring full control over native APIs
Apps with very specific platform requirements
Projects with very long horizon and stable feature scope

Architecture and patterns

In our React Native projects we use proven architectural patterns ensuring scalability and maintainability.

Modular architecture

Division into business modules with clearly defined dependencies. We use Feature-Sliced Design or similar approaches.

State Management

Redux Toolkit or Zustand for global state, React Query for API data caching.

Native integrations

Bridge to iOS/Android modules when needed (payments, biometrics, push notifications).

Type Safety

TypeScript throughout the project + strict mode for predictable code.

Security and quality

Mobile app security requires a comprehensive approach - from code to infrastructure.

Code Review and Static Analysis

Automated code scanning (ESLint, SonarQube) + mandatory code review before merge.

Secure Storage

Keychain (iOS) / Keystore (Android) for sensitive data, encryption at rest.

API Security

HTTPS only, certificate pinning, token-based auth with refresh mechanism.

Testing

Unit tests (Jest), integration tests, E2E (Detox/Appium) for critical flows.

Performance and maintenance

Performance monitoring and proactive maintenance cost management are key to long-term success.

App Performance

Time to Interactive < 3s, FPS > 55, memory usage monitoring, crash rate < 0.1%.

Bundle Size

Bundle size optimization (code splitting, tree shaking), target < 50MB for iOS/Android.

CI/CD

Automated builds, tests and deployment to TestFlight/Play Console. Release cycle: 1-2 weeks.

Maintenance SLA

Bug fixes in 48h (critical) / 1 week (high), security updates within 2 weeks of release.

How we deliver React Native projects

Our delivery process is focused on rapid iterations and transparent communication.

Discovery (1-2 weeks)

Requirements workshops, stack analysis, library selection, proof of concept for key integrations.

Design & Architecture (2-3 weeks)

UX/UI design, module architecture, design system, test plan.

Development (8-16 weeks)

2-week sprints, code review, automated tests, regular demos for stakeholders.

Release & Maintenance

Publication in App Store/Play Store, monitoring, hotfixes, long-term development plan.

Frequently Asked Questions

Is React Native performant enough for production apps?