From Native to React Native for TV: The Zattoo Case

Featuring
Łukasz Chludziński
Engineering Manager
@
Callstack
Ada Gawrysiak
Head of Growth
@
Callstack
Pavel Verkhovskyi
Director of Engineering
@
Zattoo
Bogdan Plieshka
Principal Frontend Engineer
@
Zattoo

TV platforms are converging, and teams are under increasing pressure to deliver consistent experiences across multiple environments without multiplying effort. This session shares how Zattoo approached that challenge by moving from separate native applications to a unified React Native strategy, focusing on speed of delivery, maintainability, and long-term scalability.

We’ll walk through the key decisions behind the migration, how it impacted team structure and day-to-day work, and what the transition process looked like in practice. You’ll hear what worked well, what didn’t, and the main challenges encountered along the way, including performance considerations and platform differences.

The session also covers how many platforms Zattoo is targeting today and how their approach enables them to expand further without starting over. It’s a practical look at building high-quality TV apps with a shared foundation, based on real production experience.

Insights

Learn more about TV

cover

Jun 11Article

AI-Assisted React Native Migration for TV: Lessons From Zattoo

A practical look at React Native TV migration, based on Zattoo’s experience with shared code, platform differences, and team change.

cover

Nov 25Podcast

Amazon's Vega OS: A New OS With React Native Built-In

Giovanni Laquidara (Amazon) introduces Vega OS, a new lightweight operating system with React Native built-in, designed for high-performance on low-end media devices.

cover

Oct 3Article

Cross-Platform TV Apps With React Native for tvOS, Android TV, and Tizen

Learn why React Native is a powerful choice for TV app development. Discover how it unifies development for tvOS, Android TV, Tizen, and more with a single codebase.

cover

Oct 2Live Stream

Building React Native App for Vega OS

React 19.2 brings <Activity> and useEffectEvent, new ideas for React state management arrive, and Vega OS debuts as a React Native-powered Linux OS.

cover

May 29Talk

The Bigger Picture

React Native lessons from TV that scale: performance, architecture & cross-platform code strategies, beyond mobile, across devices.

cover

Mar 5Podcast

Multiple TV Platforms, One Codebase: React Native TV App Development

Is TV app development is the same as mobile, but bigger? It's not. In this episode, Michael Khirallah (DIRECTV) and Chris Trag (Amazon) will explain why.

cover

Dec 6Article

Developing a React Native TV App

Build React Native TV apps. Explore Expo and Bare React Native TV setups, add TV support to existing projects, and structure apps for multi-platform builds.

Event Cover

Oct 2Webinar

Mastering the Big Screen: React Native for TV

Tune in to the recording of a webinar we held with with Amazon to explore the best practices of TV app development in React Native.

cover

Dec 13Podcast

React Native for TV App Development

Learn about the current state of the TV development space and the benefits and considerations of applying React Native to it.

cover

Oct 6Article

Receiving a Live Stream With Amazon IVS in React Native

Discover how to integrate Amazon IVS (Interactive Video Service) into your app, powered by AWS. Learn to set up a streaming player with minimal code.

cover

Feb 2Article

Amazon Fire TV Stick App in React Native

Use React Native to build an AF app. Explore more in our article! Contact us for React Native project assistance.

cover

Mar 19Tutorial

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.

cover

Mar 12Tutorial

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.

cover

Mar 5Tutorial

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.

cover

Feb 24Tutorial

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.

cover

Feb 10Tutorial

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.

cover

Jan 29Tutorial

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.

cover

Jan 19Tutorial

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.

cover

Jan 9Tutorial

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.

cover

Dec 30Tutorial

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.

cover

Dec 22Tutorial

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.