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Brownfield

Brownfield development represents the journey of gradually adopting React Native within established native mobile applications. Discover strategies, best practices, and real-world examples of successful brownfield migrations that allow teams to leverage React Native while preserving existing native investments.

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React Native Brownfield Deep Dive: How RN Moves Into Native Applications

Artur Morys-Magiera will explain how React Native can move into an existing native app without forcing a big-bang rewrite.

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Expert EngineeringFinance

A brownfield architecture that kept feature delivery moving across financial apps used by millions

4x: increase in RN pages across the tracked page set

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React Native in .NET MAUI: A Practical Brownfield Integration Guide

Learn how to embed React Native inside a .NET MAUI app with a brownfield setup. This guide covers runtime packaging, lifecycle wiring, navigation, and shared state across both runtimes.

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Adoption of Brownfield in React Native

Artur Morys-Magiera will explain how teams can adopt React Native incrementally inside existing native applications.

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Migration to React Native in 2026 Starts With a Delivery Question

Choosing between brownfield and greenfield React Native migration? Learn where risk sits, when to use a checkpoint, and what to prove before committing.

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How we made Hybrid iOS apps compile 39% faster with React Native Brownfield

See how React Native Brownfield uses iOS prebuilts to cut packaging times by up to 39% for hybrid apps, with details on setup, internals, and benchmark results.

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How We Made the Brownfield Gradle Plugin 22% Faster

See how task-driven Gradle optimization made the Brownfield Gradle Plugin 22% faster for clean Android release builds.

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AI-Supported Brownfield Migration to React Native

See how AI-supported workflows cut brownfield React Native evaluation from weeks to days by speeding up setup, planning, implementation, and QA.

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Unlocking Expo Updates in an Isolated Brownfield Architecture with SDK 55

Learn how to enable Expo Updates in an Isolated Brownfield setup with Expo SDK 55, including iOS packaging, Android patching, and OTA testing.

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State of Brownfield in React Native

A practical look at Brownfield React Native adoption in mature native apps, architecture, tooling, and real-world tradeoffs.

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AI-Assisted Migrations to React Native: From Months to Days

Reduce migration time from months to days by using AI in real React Native workflows. Learn when to migrate incrementally and when starting fresh is the better option.

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Brownie: A Type-Safe Shared-State Workflow for Brownfield React Native

Brownie brings stable, cross-platform shared state to brownfield React Native apps with typed models for Swift and Kotlin.

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Adding React Native to existing apps?

We help teams introduce React Native into brownfield projects effectively.

2×Estimated AI-assisted delivery speedupJetBrains
25Working days from kickoff to mergeJetBrains
1Plugin across three frameworksJetBrains
10min from code change to mini-app releaseTeamworks
multi-dailystaging deployments instead of weekly releasesTeamworks
7mini-apps supported in one modular mobile platformTeamworks
2CI/CD lanes for mini-app and host-app distributionTeamworks
2xgrowth in mobile user base during the migration periodAutoZone
4.2 -> 4.7app rating increase after migrating to React NativeAutoZone
0missed releases during the transition to React NativeAutoZone
33%fewer re-renders across most featuresQuestrade
18%faster time-to-interactiveQuestrade
-28%CPU usage in critical trading flowsQuestrade
78%bundle size reduction (from 50 MB to 11 MB)Dream11
30%faster component mount time after render optimizationDream11
60%faster initial load time enabled by switching to HermesDream11
5xfaster message sending timeExpensify
4.5xfaster search screen loading timeExpensify
#1SEO rank, recovering from 3-9AutoZone
260kBless in blocking JS payloadAutoZone
2–5xfaster feedback loopAutoZone
2.8xincrease in knowledge over 8 weeks (25% → 71% assessment scores)Hello Fresh
15developers trained across web and native backgroundsHello Fresh
86%of devs self-rated their knowledge as 3/5 or higher after training (up from 0%)Hello Fresh
130%increase in users post-upgrade7cups
63%adoption rate; majority of attendees registered in the appReact Universe App
67%of attendees connected through QR badge sharingReact Universe App
45%created personalized badges to showcase identity and goalsReact Universe App
49%of attendees onboarded before day one, arriving ready to networkReact Universe App

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