In-depth guides to
React and React Native

Callstack’s Ultimate Guide to React Native Optimization became an industry reference. This update reflects the biggest changes in React Native optimization to help you stay ahead of performance challenges in 2025 and beyond.

• Updated techniques for React Native’s New Architecture (Fabric, TurboModules, JSI)
• Optimizations for Hermes and React Compiler
• Advanced profiling and debugging methods using the latest tools
• Practical real-world optimizations from top React Native teams

From struggling with slow app load times to inefficient user interactions, performance issues can harm your business and frustrate your users. This ebook presents a structured, data-driven approach—DMAIC—to diagnose, address, and sustain performance improvements in React Native applications. Based on a detailed real-world case study, you'll learn precisely how DMAIC can help achieve measurable enhancements:

• Cut down app start times drastically.
• Accelerate critical user interactions.
• Maintain consistent performance through continuous monitoring.

Authored by Callstack's software engineers, this ebook provides actionable guidance to significantly boost your application's speed, efficiency, and overall user experience.

The challenges organizations face when migrating to React Native often feel familiar. In this guide, we detail three proven scenarios for adopting React Native, each illustrated by real-world examples from global enterprises. Discover how React Native can transform your applications effectively and safely, without disrupting business operations. Here's what you'll read about if you download it:

• Validating React Native viability with a real-world Proof of Concept.
• Consolidating development through hybrid migrations.
• Replacing siloed native code with reusable React Native components.

Authored by Michał Pierzchała and with the input of software engineers working on brownfield projects on a daily basis, this guide provides clear instructions for implementing incremental React Native adoption in your organization.

From designing for fragmented TV markets through essential and complementary features to performance optimization techniques and best practices for code sharing, this ebook is your one-stop shop for unlocking the power of the big screen.

• Discover the must-have features for high-quality TV apps
• Create flexible designs for all major TV systems
• Enhance user experience with holistic optimization strategies

Authored in collaboration with experts from Callstack and Amazon, "Mastering The Big Screen: React Native for TV" offers practical insights into leveraging your existing React skills to build scalable and performant apps that work across smart TVs, set-top boxes, streaming sticks, and gaming consoles.