React Native × App Startup
React Native App Startup
We track 17 React Native App Startup case studies from 9 engineering teams. Callstack, Dream11 and Shopify write about it most. Many posts also cover App Size and Performance Profiling. The posts run from 2016 to 2026. The newest is from February 2026.
React Native App Startup articles 1–17 of 17
How to modernize mobile retail apps with Expo
Jonathan Bones from bitglow turned a crashing retail app into a performance powerhouse. His team cut React Native upgrade time by 80% and boosted performance scores from 36 to 90 for German retailer DEPOT.
Why You Don't Have to Minify JavaScript Code in React Native Apps
Davyd Narbutovich from Callstack challenges a web development habit that React Native developers can skip entirely. Turns out, minifying JavaScript in your RN apps might be wasted effort.
Startup Time: Your App’s Make or Break Moment | by Dream Blog | Dream Locker Room | Medium
Dream11 serves 230M sports fans with 15M+ concurrent users during IPL. Their React Native app startup time was killing conversions.
Five Years of React Native at Shopify
Mustafa Ali from Shopify just dropped a masterclass in platform migration strategy. Five years after betting the company's mobile future on React Native, here's what actually happened.
Shopify completes React Native migration after a Decade
Shopify just completed a massive React Native migration of a decade-old app—and the results are stunning.
The Peacock app just made the switch from ReactNative to iOS & Android and had a significant change in size and startup time
Peacock just ditched React Native for fully native iOS and Android. The performance gains? Significant.
Hermes Engine Becomes React Native Default
React Native just made a massive default change that could speed up your app launches and shrink your bundle size. Here's what the benchmarks show.
Boost Android Performance Using Hermes
Instawork's Android app was taking 5-6 seconds to start while iOS clocked in at just 1.5 seconds. That performance gap was killing their user experience on low-to-mid range devices.
Tree Shaking React Native Apps
Klarna Engineering borrowed a web optimization technique and cut their React Native app startup time by 20%. Here's how tree shaking made the difference.
Making Hermes the Default JavaScript Engine
Meta's Hermes team cut app startup time in half and reduced GC pauses by 34x. Here's how they're making it the default engine for React Native.
Hermes JavaScript Engine Performance on iOS
Callstack brings Hermes to iOS with React Native 0.64, ending Android's monopoly on this performance-focused JavaScript engine. The results challenge assumptions about cross-platform optimization.
Bringing Hermes to iOS in React Native
Callstack just brought Hermes to iOS, and the performance gains are real. After years of Android exclusivity, React Native's lightweight JavaScript engine finally runs on Apple platforms.
Don’t Let That Consistent Launch Time Slip Away
Dream11's 110M+ users join fantasy sports contests minutes before deadlines. A slow app launch means lost revenue and unfilled contests.
Hermes JavaScript Engine for React Native
Facebook just open-sourced Hermes, a JavaScript engine built specifically for React Native on Android. This isn't just another optimization tweak. It's a ground-up rethink of how JS should run on mobile.
Hermes: An Open Source JavaScript Engine Optimized for Mobile Apps
Facebook built a JavaScript engine from scratch because existing ones weren't cutting it for mobile. Hermes prioritizes what actually matters: startup time, app size, and memory usage.
React Native Performance In Marketplace
Facebook cut React Native Time to Interaction in half on low-end Android devices. The secret? They stopped trusting their testing tools and went straight to production data.
Dive Into React Native Performance
The React Native team made their app startup twice as fast. Here's how they tackled one of mobile's most critical performance challenges.