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Events

Where we share what we learn

Stay connected with our team through events, talks, and workshops. Check out what’s coming next or browse recordings from past sessions.

Conference

Warsaw | Poland

Online

Agent Conf

Join 500+ engineers in Warsaw Sept 17-18 2026 for Agent Conf. Learn agentic development, orchestration, and AI-driven workflows.

Registration closed

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Meetup

Kuala Lumpur, Malaysia

Online

KLJS x React Universe Meetup, Kuala Lumpur

Join Callstack and Ryt Bank on May 5 in-person for a React Universe meetup with practical talks for engineers working with React and React Native in production.

Registration closed

Conference

New York, United States

Online

React Universe Summit

A one-day conference in New York for engineering leaders shaping how enterprises use AI and React Native to move faster, build with more precision, and scale with confidence.

Registration closed

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Hire us

Need React or React Native
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We’ve spent years building full-stack, cross-platform apps and solving tough technical challenges. How can we help you?

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Insights

Your next read or watch starts here

Stay up to date with our latest insights on React, React Native, and cross-platform development from the people who build the technology and scale with it daily.

How Skillgym Helps You Verify Agent Skills Still Work After Every Change

See how skillgym tests agent skills across runners, validates behavior, and catches regressions before your users do.

Agent React DevTools: Give AI Agents Access to React Internals

Agent React DevTools gives AI agents access to the React component tree, state, and performance data, enabling deeper debugging and more reliable QA for React and React Native apps.

How We Optimized Agent Device for Mobile App Automation

Discover how we optimized Agent Device to reduce LLM token consumption by over 50% and speed up AI-driven mobile app automation.

Agents Commander: A Lightweight Interface for Multi-Agent CLI Workflows

Manage and connect multiple AI agents in a CLI with a simple communication protocol.

Brownie: A Type-Safe Shared-State Workflow for Brownfield React Native

Brownie brings stable, cross-platform shared state to brownfield React Native apps with typed models for Swift and Kotlin.

Announcing Codex Plugins for React Native Development

How Codex plugins work, why they're useful for React Native development, and two plugins we built for building and testing React Native apps.

React Native 0.85: Animation Backend and Key Updates

A recap of React Native 0.85, covering the new animation backend, DevTools improvements, and ecosystem takeaways.

AI-Assisted Migrations to React Native: From Months to Days

Reduce migration time from months to days by using AI in real React Native workflows. Learn when to migrate incrementally and when starting fresh is the better option.

Expo UI with SwiftUI and Jetpack Compose in practice

Exploring Expo UI with SwiftUI and Jetpack Compose, including setup challenges, architecture tradeoffs, and real-world developer insights.

From Teddy Bears to Voice Agents: Kraen Hansen on Voice AI, Local-First & App Security

What happens when you combine voice agents and teddy bears? A hands-on look at local-first systems, voice AI, and security lessons from poking real apps.

Building v0 iOS and Fixing React Native Along the Way

A technical look at building v0 mobile with React Native and Expo, covering iOS-first decisions, native modules, and fixes pushed to React Native core. Featuring Fernando Rojo, Szymon Rybczak, and Oskar Kwaśniewski.

A (Secure) Christmas Carol: The Story of Npmezer Scrooge

A holiday story about npm audits, unpinned dependencies, and the real cost of ignoring JavaScript security warnings.

The Hard Way vs. The React Native AI SDK Way: Stop Writing Custom Modules for Every Model

Learn how React Native AI uses a unified provider model to switch between cloud and on-device LLMs without rewriting application logic, enabling reliable AI experiences online and offline.

Build Smarter Apps: Tool Calling & AI Orchestration Explained

Learn how on-device models in React Native can call tools, interact with external APIs, and return structured outputs you can use directly in application logic.

MLC LLM + React Native: On-Device AI Without the Pain

Learn how to run third-party on-device LLMs in React Native using MLC LLM. Choose your models, run them efficiently across platforms, and keep a unified JavaScript API with React Native AI.

February 24, 2026

Intelligent Fallbacks with Apple Intelligence in React Native

Learn how to use Apple’s built-in Foundation Models in React Native apps, reduce memory usage, and enable fast, fully on-device AI with React Native AI Apple.

February 10, 2026

What Is the React Native AI SDK? A Complete Intro & Quickstart

Learn why on-device AI matters for React Native apps, how local LLMs behave offline, and what problems React Native AI is designed to solve from day one.

January 29, 2026

Implementing an Android TurboModule with Kotlin

Learn how to implement a React Native TurboModule on Android, from the TypeScript spec and Codegen to the Kotlin implementation and package registration.

January 19, 2026

Working with Different Threads in Swift TurboModules

Learn how JavaScript, native module, background, and main threads interact in React Native TurboModules, and how to use GCD queues to run async work safely in Swift.

January 9, 2026

How to Add Type-Safe Constants to Swift TurboModules

Learn how to expose typed, immutable constants from a Swift TurboModule using Codegen, and get full end-to-end type safety between native and JavaScript.

December 30, 2025

Adding Event Emitters to Your TurboModule in Swift

Learn how to emit native events from a Swift TurboModule and subscribe to them in JavaScript, including proper memory management and Codegen integration.

December 22, 2025

Writing Your First TurboModule in Swift

Learn how to build a fully working TurboModule in Swift, integrate it with Codegen, and bridge it through Objective‑C inside an Expo app.