Callstack

Apex is our new coding model designed for React Native. It achieves frontier coding results for mobile workflows at a fraction of the cost.

Apex is now publicly available. Explore Callstack's coding model for React Native and Next.js, with API pricing, benchmarks, and self-hosting options.

Discover proven techniques for reducing TTI, improving FPS, and fine-tuning your React Native app's performance. Download the free React Native optimization guide today.

Hermes is now available for iOS as well. Find out more about this JS engine - check the first part of our series on bringing Hermes to iOS.

Wondering how the Hermes engine performs on iOS? We tested it on a React Native mobile app. Check the results and see how it compares to JSC.

Discover how Hermes boosts React Native performance on iOS and macOS, with insights into AOT, bytecode precompilation, and the future of Hermes support.

Want to use Hermes in your React Native app on iOS? Find out how to compile Hermes for Apple platforms. Check the first part of our expert technical guide.

Explore the integration of React Native with Apple Vision Pro, enabling immersive experiences beyond compatibility mode.

What do you call the opposite of a functional pearl?