One Codebase.
iOS and Android.
Built by Humans, Not Guesses.
React Native ships your app to iOS and Android from one JavaScript codebase. It saves 30 to 40% against two separate native builds — but only when the framework is the right choice for your project. We also build Flutter. We recommend whichever fits your team and requirements, not whichever we prefer to bill.
React Native · JavaScript · TypeScript · Expo · iOS · Android
The Cross-Platform App Framework That Uses What Your Team Already Knows
If your team builds in React or JavaScript, React Native is not just a mobile framework. It is an extension of what you are already building. Business logic, API integrations, validation functions, and state management written for a React web application can be shared directly with a React Native mobile app. The UI layer is separate — web uses HTML, mobile uses React Native components — but the underlying application code is the same. For teams with an existing React codebase, this shared logic can reduce cross-platform development cost by an additional 20 to 30%.
React Native is not always the right choice. Flutter renders its own custom UI components, which delivers more consistent cross-platform appearance and better performance on animation-heavy interfaces. If you are starting a new project without prior JavaScript commitment, Flutter is often the better technical choice. We build both. If your project is better served by Flutter, we will say so in the discovery call. See the Flutter vs React Native comparison in Section 3.
We build React Native apps for SaaS products adding a mobile companion to their web platform, for eCommerce brands expanding to mobile, for startups choosing cross-platform for cost efficiency, and for enterprises replacing legacy mobile apps. For iOS-only or Android-only requirements, we build natively: iOS app development | Android app development.
Code Sharing with Your Web App
React Native shares business logic with your React web codebase. API calls, data models, and validation functions written once, used on web and mobile.
30-40% Less Than Two Native Apps
One codebase for iOS and Android. Less development time, one QA cycle, one codebase to maintain. The cost saving is real and consistent.
New Architecture Performance
We build on React Native's new architecture (Fabric + TurboModules) for new projects. Eliminates the JavaScript bridge bottleneck that affected older React Native performance.
Honest Framework Recommendation
We also build Flutter. If your project needs Flutter, we recommend Flutter. The recommendation is based on your team and requirements, not on which framework we prefer to work in.
Flutter vs React Native — Which One Fits Your Project?
We build both Flutter and React Native. Here is the honest comparison.
| Factor | Flutter | React Native |
|---|---|---|
| Created by | Meta (Facebook) | |
| Language | Dart (Google's language) | JavaScript / TypeScript |
| UI rendering | Custom Skia renderer — identical cross-platform | Native platform components — platform-specific feel |
| Performance | Slightly better — compiled to native ARM | Near-native — depends on JS bridge / JSI |
| Learning curve | Medium — Dart is a new language | Low — uses JavaScript/React that web devs know |
| Code sharing with web | Limited — Dart ecosystem only | Strong — share JS business logic with React web apps |
| UI consistency | Pixel-perfect match across iOS and Android | Small differences in native component appearance |
| Best for | New projects, design-heavy apps, performance-critical | Teams with React/JS skills, apps with existing React web code |
| CV Infotech recommendation | Default for new cross-platform projects | When team already knows React or has existing React web app |
For most new projects without prior JavaScript commitment, Flutter is our default recommendation. The custom renderer delivers more consistent UI and the performance ceiling is higher. React Native is the stronger choice when your development team already works in JavaScript, when you have an existing React web application and want to share code, or when your timeline benefits from your team's existing React knowledge. Neither framework is universally better. The right choice depends on your team, your product, and your timeline.
See our Flutter development serviceWhat We Build in React Native
New React Native App
Full build from discovery to store submission. New architecture (Fabric + TurboModules). Expo or bare React Native based on your feature requirements. Both iOS App Store and Google Play included.
Learn moreReact + React Native (Shared Codebase)
When you have an existing React web app, we architect the React Native project to share business logic, API calls, and data models. Reduces total development cost by 20-30% compared to a standalone mobile build.
Learn moreCustom Native Modules
For features React Native cannot handle with JavaScript alone — custom camera processing, Bluetooth hardware, biometric authentication, or platform-specific SDK integration. Native modules written in Swift/Objective-C (iOS) and Kotlin/Java (Android).
Learn moreReact Native Performance Optimisation
Auditing existing React Native apps for performance issues: excessive re-renders, memory leaks, large bundle sizes, slow list rendering, bridge bottlenecks. Migration to new architecture (Fabric) for apps still on the legacy bridge.
Learn moreReact Native Security Review
Code audit for security vulnerabilities: insecure local storage, unprotected API keys, certificate pinning, insecure HTTP usage, third-party library vulnerabilities. Security review before App Store submission or for existing production apps.
Learn moreLegacy React Native Upgrade
Upgrading apps stuck on old React Native versions. Dependency migration, bridge-to-JSI migration, Expo SDK upgrades, and breaking change remediation. Full audit report before upgrade work begins.
Learn moreThe React Native Team That Recommends Flutter When It Fits Better
The agencies who recommend React Native for every project are the agencies that only build React Native. We build Flutter too. The recommendation you get from us reflects your project requirements, not our preferred billable framework. Steven has been our client since 2019 — because the right recommendation builds a 7-year relationship, not the convenient one.
This engagement is not right if you:
- —Need the cheapest quote with no specification of quality
- —Want to start without a technical discovery call
- —Have no clarity on what the app should do or who uses it
- —Expect the same developer who was on the last project to be available instantly for the next
We scope before we start. If the scope reveals Flutter is the better choice, we say so.
US Clients (CCPA, AWS us-east-1, EST)
EST-aligned calls. AWS us-east-1. CCPA-compliant. Steven's AI SaaS platform (React/Next.js) maintained since 2019. US development services.
UK Clients (UK GDPR, AWS eu-west-2, GMT)
GMT-aligned. AWS eu-west-2. UK GDPR. John Gowland's platform: 8-month build. UK development services.
Australian Clients (Privacy Act 1988, AWS ap-southeast-2, AEST)
AEST overlap. AWS ap-southeast-2. Privacy Act 1988. Laura Maher: “Communication is 10 out of 10. Barely notice the time difference.” AU development services.
We Also Build Flutter
We recommend the right framework for your project. If that is Flutter, we build Flutter. This is why we can be trusted on the React Native recommendation — we have no incentive to steer you toward it.
New Architecture by Default
New projects are built on Fabric and TurboModules — React Native's new architecture released in 0.71+. Better performance, better type safety, no legacy bridge. Not all agencies have upgraded their approach.
React Depth
UltimaBot and UltimaWriter — AI SaaS platforms — are built and maintained in React and Next.js by our team. That React expertise directly transfers to React Native project quality.
512 Verified Reviews
Freelancer.com, 5.0 rating. 14 years. More verified reviews than any React Native agency competitor in this SERP. Verified by the platform, not written by us.
From Discovery to Both App Stores in 6 Stages
Every React Native project follows the same structure. The framework recommendation happens in Step 2 — not after you have signed.
Discovery and Framework Decision
Week 1NDA first. Then a discovery call covering scope, user flows, platform requirements, and your existing tech stack. We assess whether React Native is the right framework for your project. If Flutter is a better fit, we say so now.
Scope and Architecture
Weeks 1-2Written scope: every feature, excluded scope, tech stack decision (Expo vs bare RN), backend plan, and third-party integrations. Architecture document covering navigation (React Navigation or Expo Router), state management (Zustand, Redux Toolkit, or Context), and API layer.
UI Design
Weeks 2-4Figma screens for every user flow. Platform conventions applied — iOS uses native navigation patterns, Android uses Material Design conventions. Design system (components, typography, colours) established before development begins.
Development Sprints
Weeks 4-16Two-week sprints. Working TestFlight (iOS) or APK (Android) build shared at the end of every sprint. You test on your own device — not a simulator screenshot. Direct Slack/email access to the lead developer throughout.
QA and Store Preparation
Weeks 14-18Testing across 10+ physical devices on both iOS and Android. Performance profiling. Privacy manifest completion (Apple requirement). App Store and Play Store listing preparation. Rejection risk review before submission.
Store Launch and Handover
Weeks 16-19Submitted to both App Store and Google Play simultaneously. Review managed by us. Any rejection feedback responded to and resubmitted at no extra cost. Full codebase, documentation, and credentials delivered on approval.
React Native Development — Frequently Asked Questions
React Native or Flutter — Let's Find Out Together
The framework recommendation is part of the discovery call, not after you sign. If Flutter fits your project better, we say so then. $30/hour. 512 verified reviews. 100% in-house. iOS and Android delivered from one codebase.