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Insights

Performance

Performance optimization is crucial for delivering a smooth, responsive experience in React Native applications. Explore techniques for improving startup time, reducing bundle size, optimizing renders, and handling memory efficiently to create applications that delight users across all devices.

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Profiling React Native Apps With iOS and Android Tools

Improve mobile user experience with real-time data by profiling your React Native app with tools like Instruments on iOS and Android Profiler on Android.

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Lottie vs. Rive: Optimizing Mobile App Animation

Explore the comparison between Lottie and Rive as solutions for mobile app animation, learning about their advantages and limitations.

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How to Achieve 60FPS Animations in React Native

Use native solutions to achieve smooth animations and gesture-driven interface at 60FPS.

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Optimize React Native Apps' Battery Drain With Mobile-Dedicated Libraries

Use libraries dedicated to mobile and build features faster on many platforms at once, without compromising on the performance and user experience.

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How to Choose Tools Wisely and Build Fast-Working React Native Apps

Find the balance between native and JavaScript to build fast-working and easy-to-maintain apps.

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How Can Higher-Order Components Improve Performance of React Native Apps?

How to use dedicated, higher-ordered React Native components to improve user experience and performance of your apps.

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React Native: Handling Language Changes on Android the Right Way

Internationalization is all about offering your products in such a way that they can be localized for languages and cultures easily.

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Your React Native Offline Tool Belt

A quick guide to optimizing your React Native application for users that may use your application in offline mode.

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What's New in Reassure 1.0

Find out how to monitor React and React Native performance better than ever before with Reassure's new features.

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Superfast Nitro Modules with Marc Rousavy

Even faster React Native apps? That's possible with Nitro Modules! Tune in to the conversation with their creator, Marc Rousavy.

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React Native Performance in 2024: Challenges, Solutions, Forecasts

Join us as we explore the latest developments in React Native performance optimization with experts from Expo and Callstack.

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Profiling in Native and React Native

Get insights into profiling your React Native app from our experts in this podcast episode.

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React Native FastIO: Nitro-Powered Performance Boost

Listen to Mike Grabowski talk about React Native FastIO, a collection of primitives for working with data in React Native and its performance benefits.

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Creating Performant React Native Animations

Animations and performance: friends or foes? Tune in to learn how not to break your React Native app's user experience.

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Tips & Tricks From The Ultimate Guide to React Native Optimization 2025

View flattening, React 19 hooks, real DevTools tips-learn what actually helps your React Native app run faster.

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User-Focused Performance Tracking

Discover how Expensify defines and tracks performance metrics that actually impact user experience.

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React Native WebAssembly Release Walkthrough

Join us for a deep dive into Polygen: Callstack Incubator's breakthrough in React Native development!

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Running WASM in React Native Apps

Find out about executing WASM in React Native, the challenges of JIT restrictions on iOS, and how Callstack's wasm2c solution enables performant native modules.

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Automated Performance Regression Testing With Reassure

Developers often fix performance issues in React apps, but this is unsustainable and prone to regressions. Reassure, a testing library, helps spot problems before production, enhancing automated testing suites.

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Master JavaScript Performance in React Native (Part 2)

Learn to fix JS performance issues in React Native-from debounce bugs to Redux selectors, in this hands-on webinar with real code examples.

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Master JavaScript Performance in React Native (Part 1)

Watch Callstack's webinar on React Native JS performance. Learn to fix bottlenecks, leaks & FPS issues from the 2025 Ultimate Guide authors.

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Top 5 Metrics You Need to Track When Optimizing Your React Native App

Watch a webinar on optimizing React Native apps to learn the top 5 metrics every React Native team should track to improve performance, reduce load time, and boost user experience.

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Practical Approach to React Native Optimization for SMEs and Enterprises

Learn how Callstack improved a React Native app’s performance and user ratings through a real-world audit. Watch the webinar to see how it was done.

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Improving React Native App Performance: Practical Tactics and Real-Life Case Studies

Learn how to improve your React Native app's performance with practical tactics, metrics, and real-life case studies from Callstack experts.

We don't follow best practices, we set them

React Native Core Contributors

Trusted by Meta, Microsoft, and the community

We don't follow best practices, we set them

React Native Core Contributors

Trusted by Meta, Microsoft, and the community

We don't follow best practices, we set them

React Native Core Contributors

Trusted by Meta, Microsoft, and the community

We don't follow best practices, we set them

React Native Core Contributors

Trusted by Meta, Microsoft, and the community

We don't follow best practices, we set them

React Native Core Contributors

Trusted by Meta, Microsoft, and the community

We don't follow best practices, we set them

React Native Core Contributors

Trusted by Meta, Microsoft, and the community

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Expo

They took our team from 'zero to hero' in React Native

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