React Native development that scales from MVP to Series B .

We've built React Native apps since 2015. We know what works and what breaks at scale. Your investors will audit your architecture—we make sure it passes.

$27M+ Raised
200K+ Users Scaled
99% Crash-Free

Why React Native wins for funded startups.

You need iOS and Android apps. You have limited budget and tight timelines. React Native lets you ship both platforms from one codebase in half the time.

The math:

  • • Native development: 16-20 weeks, $600K-$800K, two teams
  • • React Native: 8-12 weeks, $300K-$400K, one team
  • • Same outcome: Apps on both stores that scale to millions

What founders get:

  • Ship 40% faster with single codebase
  • Maintain half the code compared to native
  • Fix bugs instantly with over-the-air updates
  • Hire one team instead of iOS + Android specialists
  • Iterate daily with hot reloading

Most funded startups choose React Native. The ones that don't either have infinite budget or don't understand the tradeoffs.

Get Your React Native Roadmap

We'll show you exactly how React Native can accelerate your timeline.

When React Native is the right choice.

Choose React Native if:

  • You're pre-Series A and need to prove product-market fit fast
  • You need both iOS and Android without 2x budget
  • Your app is content, commerce, or business-logic driven
  • You want to ship features weekly, not monthly
  • You have limited engineering resources
  • You need over-the-air updates for instant bug fixes

Examples of successful React Native apps:

  • • Instagram (used for 95% of their app)
  • • Discord (handles millions of concurrent users)
  • • Shopify (powers their entire mobile commerce platform)
  • • Coinbase (manages billions in crypto transactions)
  • • Microsoft (Teams mobile app)

These aren't small apps. These are apps that handle scale better than most native apps.

When React Native is the wrong choice.

We turn down clients when React Native isn't the right fit. Here's when you should build native instead.

Choose native iOS/Android if:

  • You're processing video or audio in real-time
  • You need complex AR features or custom camera processing
  • You're building Apple Watch or Android Wear as primary platform
  • You have 200K+ users and need to optimize every millisecond
  • You're a consumer app competing on polish (Instagram-level)

Be honest about your constraints:

  • • If you have $200K budget, you can't build native for both platforms
  • • If you need to ship in 8 weeks, native won't work
  • • If you're pre-product-market-fit, native is premature optimization

We've built both. We'll tell you which makes sense for your stage and budget. Most pre-Series A startups pick React Native. Most Series B+ startups still use React Native.

Get Expert Platform Recommendation

We'll analyze your needs and recommend the right approach.

Our React Native architecture approach.

Most agencies build React Native apps like websites. We build them like production systems that pass technical due diligence.

Business Logic Layer (Pure TypeScript)

  • • Domain models and entities
  • • Business rules and validation (Zod schemas)
  • • Use cases and application services
  • • Zero React dependencies
  • • 100% testable without UI

State Management Layer (Zustand)

  • • Application state stores
  • • API client interfaces
  • • State synchronization logic
  • • Cache management
  • • Offline-first capabilities

Presentation Layer (React Native)

  • • UI components and screens
  • • Navigation and routing
  • • Form handling and validation
  • • Platform-specific UI code
  • • User interaction logic

Why this matters for investors:

When VCs audit your code, they check if your business logic lives in React components. If it does, they see a mess that can't be tested or maintained. Our architecture keeps business logic separate—testable, portable, and investor-ready.

See Our Architecture in Action

We'll show you how clean architecture helps you pass due diligence.

Expo and over-the-air updates.

We use Expo for 90% of our projects. It's not a limitation—it's a superpower.

Instant over-the-air updates

You find a critical bug on Friday night. With native apps, you submit to app stores and wait 24-48 hours. With Expo Updates, you push a fix in 20 minutes. Users get it automatically.

Built-in native modules

Camera, location, notifications, sensors—all work without writing native code. No Xcode. No Android Studio. Just TypeScript.

Development speed

Hot reloading that actually works. Instant preview on real devices. Share builds easily. Ship features 2x faster.

Easy upgrades

New iOS or Android version? Update one package. Done. Native projects break on every OS update.

Real-world impact:

PicklePlay found a crash affecting 15% of users on Friday night. We pushed a fix via Expo Updates in 20 minutes. By Saturday morning, 98% of users had the update. No app store submission needed.

Build with Expo Updates

Ship faster and deploy fixes instantly with our Expo expertise.

TypeScript, Zustand, and Zod: Our stack.

We use the same stack for every React Native project. Not because we're lazy—because this stack actually works at scale.

TypeScript for everything

Type safety catches bugs before production. IDE errors as you type. Safe refactors. Faster onboarding.

Zustand for state management

Redux requires 200 lines of boilerplate for simple features. Zustand does it in 20 lines. Clean, readable state.

Why we don't use Redux:

  • • Too much boilerplate (5x more code)
  • • Harder to maintain (complex mental model)
  • • Slower development (more files, more ceremony)
  • • Overkill for 99% of apps

Zod for runtime validation

TypeScript checks types at compile time. Zod validates data at runtime. API returns invalid data? Zod catches it. Type-safe end-to-end.

This isn't theoretical. PicklePlay went from 30% crash rate to 0.8% partly because we validate everything with Zod.

React Native performance optimization.

Slow apps kill retention. We've optimized React Native apps from 8-second startup to under 2 seconds. Here's how.

Common problems

  • • Unnecessary re-renders
  • • Image loading bottlenecks
  • • JavaScript thread blocking
  • • Navigation performance issues
  • • Large bundle sizes

Results we deliver

  • • Startup time: 8s → 1.8s
  • • List scrolling: 30fps → 60fps
  • • Memory usage: -40%
  • • Bundle size: -50%
  • • Battery drain: -60%
Optimize Your App Performance

We'll audit and improve your app's performance.

React Native vs Flutter: The honest comparison.

Founders ask us about Flutter. Here's what we tell them.

Choose React Native if:

  • • You have web developers (React skills transfer)
  • • You want over-the-air updates
  • • You need to hire developers easily
  • • You might build a web app (share business logic)
  • • You need mature ecosystem and packages

Choose Flutter if:

  • • You need extremely custom UI animations
  • • You're building a design-heavy consumer app
  • • You have Dart developers already
  • • You prioritize UI polish over development speed
  • • You don't need over-the-air updates

Flutter is great technology. But React Native wins for most funded startups because of ecosystem, hiring, and Expo's over-the-air updates.

React Native testing strategy.

Apps with poor test coverage fail technical due diligence. We implement testing that catches bugs before users do.

Our testing pyramid

  • Unit tests (70%): Test business logic and utilities.
  • Component tests (20%): Test components in isolation with mocks.
  • End-to-end tests (10%): Full flows on real devices.

Quality metrics we target

  • • 80%+ code coverage
  • • 99%+ crash-free rate
  • • 90+ performance score
  • • 4.5★+ app rating
  • • < 2 second load time

VCs review your test coverage during due diligence. Apps with <50% coverage raise red flags. We get you to 80%+ so you pass.

Implement Testing Strategy

We'll set up comprehensive testing that passes due diligence.

React Native security and compliance.

One security vulnerability kills your funding round. We implement security that passes audits.

Security measures we implement

  • • OAuth 2.0 and JWT token management
  • • Biometric authentication (Face ID, Touch ID)
  • • AES-256 encryption for data at rest
  • • TLS 1.3 for data in transit
  • • Certificate pinning to prevent MITM attacks
  • • Jailbreak and root detection

Compliance we help achieve

  • GDPR: EU data protection requirements
  • CCPA: California privacy compliance
  • SOC 2 Type II: Security controls investors expect
  • HIPAA: Healthcare data protection (if applicable)
  • PCI DSS: Payment security (if applicable)

Your Series A investors will request these documents. We make sure you have them.

PicklePlay: 10K users to 200K users in 12 weeks.

The Challenge

PicklePlay had 10K users but their app was broken. Crashes hit 30% of sessions. Reviews averaged 2.8★. Poor architecture made every new feature take weeks.

What We Did

We rebuilt their React Native app from the ground up. Implemented Zustand for clean state management. Built a new Python backend with proper API design. Added Sentry for error tracking and fixed root causes systematically. Reduced crashes from 30% to under 1%.

The Result

Crash rate:

30% → 0.8%

App rating:

2.8★ → 4.5★

Users:

10K → 200K

Exit:

Acquired by UTR

"Vermillion rebuilt our app in 12 weeks. We went from losing users daily to 200K active users. UTR acquired us shortly after."

— Blake Renaud, Founder, PicklePlay

Ready to scale like PicklePlay?

Get Your Success Roadmap

Timeline & Investment.

Week 1-2: Technical Audit

We audit your requirements, competitive landscape, and technical risks. You get a detailed roadmap and architecture plan.

Week 3-12: Core Development

We build your React Native app in 2-week sprints. Weekly demos. Continuous feedback. Adjust as needed.

Week 13-14: Testing & QA

Comprehensive testing on 20+ devices. Performance optimization. Bug fixes. App store preparation.

Week 15-16: Launch & Handoff

App store submission. Launch support. Team training. Documentation handoff.

Investment:

  • • MVP: $80K-$150K (8-12 weeks)
  • • Full product: $300K-$400K (16-20 weeks)
  • • Enterprise app: $500K+ (20+ weeks)

Most clients use unspent R&D tax credits for payment.

Discuss Your Timeline

Is this for you?.

You're Ready If:

  • ✓ You need iOS and Android apps without 2x budget
  • ✓ You want to ship features weekly, not monthly
  • ✓ You're pre-Series A and need to move fast
  • ✓ You need over-the-air updates for instant fixes
  • ✓ You can start in the next 30 days

You're Not Ready If:

  • ✗ You need complex video or audio processing
  • ✗ You're building primarily for Apple Watch
  • ✗ You have infinite budget and time
  • ✗ You already have strong iOS and Android teams
  • ✗ You can't make decisions in under 2 weeks

We work with 12 clients per year. Seven spots left for 2025.

Claim Your Spot

Limited availability. Book your strategy session now.

Frequently asked questions.

Is React Native production-ready?

Yes. Instagram, Discord, Shopify, and Microsoft use React Native in production. Billions of users interact with React Native apps daily.

Can React Native handle complex apps?

Yes. We've built marketplace, fintech, health, and social apps. React Native scales to millions of users.

What about performance?

React Native performs close to native for most use cases. We've optimized apps to 60fps scrolling and sub-2-second load times.

Why Expo instead of bare React Native?

Expo provides over-the-air updates, easier testing, and faster development. We use bare workflow only when you need custom native code.

Why Zustand over Redux?

Zustand requires far less boilerplate with the same functionality and cleaner code.

How long does React Native development take?

MVP: 8-12 weeks. Full product: 16-20 weeks. Faster than native because you ship both platforms from one codebase.

What happens next.

Book a strategy session. We'll review your requirements and tell you if React Native is the right choice. You'll get a technical roadmap and timeline. If it's a fit, we start in 30 days.

No pressure. No sales pitch. Just honest advice from engineers who've built React Native apps for 9 years.

Book Strategy Session

Session covers:

  • • React Native feasibility analysis
  • • Architecture and tech stack recommendations
  • • Timeline and milestone breakdown
  • • Investment estimate and payment options
  • • Team structure recommendations

If we work together, the $5,000 applies to your project.

--- import BaseLayout from '../../layouts/BaseLayout.astro'; import Header from '../../components/Header.astro'; import Footer from '../../components/Footer.astro'; --- React Native Development | Vermillion | Apps That Scale from MVP to Series B

React Native development that scales from MVP to Series B .

We've built React Native apps since 2015. We用 know what works and what breaks at scale. Your investors will audit your architecture—we make sure it passes.

$27M+ Raised
200K+ Users Scaled
99% Crash-Free