Mobile-development

How to Hire React Native Developers Who Can Actually Ship (Not Just Pass a Coding Test)

A developer aces a JavaScript assessment — perfect score on algorithms, clean React component design, strong TypeScript — gets hired onto a React Native team, and three months later still cannot debu

Why React Native Animations Jank and How Reanimated 3 Fixes It

A list scrolling smoothly until a background API call completes — then dropping to 20-something fps for 200 milliseconds while state updates process — is one of the most common React Native performan

React Native New Architecture in 2026: Is It Finally Ready for Production?

React Native's New Architecture — Fabric renderer, TurboModules, JSI, and Codegen — has been in development since 2018. For years, the community response was justified skepticism: impressive benchmar

7 Things to Know Before You Scale a React Native App to a Large User Base

A React Native app at 1,000 users feels effortless. At 100,000 users, cracks appear. At millions, everything you assumed about mobile development gets tested. Seven lessons stand out — each one avoid

Your React Native App Has a Memory Leak. Here's How to Find It in 15 Minutes.

Your app works perfectly for the first 10 minutes. Then it starts dropping frames. Then animations stutter. Then it crashes. The crash report says "out of memory" but your code does not load large da

How to Build Native Modules in React Native Without Losing Your Mind (A Step-by-Step Guide)

You need a feature that requires native platform access. You search npm. Nothing exists, or what exists is unmaintained, two major versions behind, and last updated 18 months ago. You need to write a

The Hermes Engine Migration Nobody Tells You About: 3 Breaking Changes That Will Crash Your App

Hermes reduces React Native app startup time by 30-50% and memory usage by 20-30%. Those numbers are real. What the migration guides do not emphasize is that Hermes implements a different JavaScript

React Native vs. Flutter in 2026: The Honest Comparison Nobody Wants to Publish

We have shipped production apps in both React Native and Flutter. We have strong opinions about each. And most published comparisons are useless because they are written by advocates, not practitione

How to Build a React Native CI/CD Pipeline That Deploys to Both App Stores in Under 20 Minutes

Without a CI/CD pipeline, a React Native team's deployment day looks like this: a developer spends 2–3 hours building, signing, and submitting to both the App Store and Play Store. Every release. Eve

Stop Using Redux in React Native. Here's What Replaced It (and Why Your Team Will Ship Faster)

A React Native app with a mature Redux implementation can easily accumulate thousands of lines of state management code: actions, reducers, selectors, middleware, thunks, and the type definitions con

React Native Offline-First Architecture: How to Stop Losing Users to Connectivity Problems

A significant portion of mobile app users — particularly those using apps in the field, on commutes, or in buildings with poor signal — experience connectivity interruptions during typical sessions.

How to Scale a React Native Codebase Past 100,000 Lines Without Losing Developer Velocity

A React Native codebase at 20,000 lines is a joy to work in. The same codebase at 80,000 lines has 4-minute builds, daily merge conflicts, and developers who are afraid to touch shared utilities. The

The React Native Debugging Technique That Senior Engineers Use (and Tutorials Never Teach)

A junior developer on our team spent two days debugging a crash that only occurred on Android 12 devices when the app returned from background after more than 30 minutes. Console.log showed nothing.

Expo or Bare Workflow? The Decision That Silently Determines Your React Native App's Ceiling

A startup CTO chose Expo because it promised faster development. Eight months later, his team spent three weeks ejecting to bare workflow because a critical feature required a native module Expo did

How to Cut React Native App Startup Time by 60% by Fixing the Bridge

A React Native app taking 4+ seconds to cold start on a mid-range Android device will lose users before the first screen renders. The culprit is usually not the JavaScript bundle. It is the bridge.