App.js Conference 2025 – A React Native Conference

Workshops

SOLD OUT

Animations and Interactions – Intro

This workshop is designed to get you up and running with animations and interactions in React Native. You’ll learn how to implement subtle microinteractions that can make all the difference in terms of the user experience. Additionally, we’ll introduce you to the gesture system and layout animations, laying a solid foundation for further exploration of more advanced topics.

Kacper Kapuściak

Catalin Miron

SOLD OUT

Animations and Interactions – Advanced

It's where you become an animation expert in React Native. We’re going to dive deep into more advanced Reanimated concepts. You’ll learn how to deal with discrete and continuous style properties, deeply understand the Reanimated threading model, master scroll-based interactions, gestures, layout measurements, interpolations and more.

Kacper Kapuściak

Catalin Miron

SOLD OUT

Performance – analysis & optimization techniques

Identify bottlenecks and enhance the performance of your application by joining our in-depth workshops on profiling and optimization for React Native apps. You’ll learn best practices and gain practical skills that you can apply immediately to your project.

Bartek Błoniarz

Tomasz Zawadzki

SOLD OUT

Mobile & Web with React Native

Discover strategies for building universal apps with React Native that target both mobile and web platforms. This workshop will cover repository structure, routing, styling frameworks, animations, DOM components, and more. Learn how to leverage React Native APIs, which are increasingly converging with Web, to maximize code sharing and build high-quality apps tailored to multiple platforms.

Błażej Kustra

Mateusz Titz

SOLD OUT

3d graphics with WebGPU, Three.js & Reanimated

Efficient 3D graphics in React Native is something new, and thanks to WebGPU, it’s now possible. It would be a missed opportunity not to integrate it into your app and provide users with a unique experience. We’ll show you how to build it with a powerful combo of WebGPU, Three.js, Reanimated, and Worklets. We’ll cover high-abstraction solutions like Three.js, but also you’ll learn how to write shaders like a game engine developer, proving that math can actually be fun and easy. WebGPU isn’t just about graphics; we’ll also demonstrate how to leverage GPU computational power in other ways. Join us and let your imagination become a reality in React Native.

Krzysztof Piaskowy

SOLD OUT

Production-ready Patterns for EAS Update

Explore the inner workings of over-the-air updates and learn best practices to help you get the most out of EAS Update. Learn strategies for leveraging native fingerprints to target JavaScript updates to builds with compatible native runtimes, how to build preview deployments into your continuous integration and testing workflow, and see how to leverage new features in the expo-updates JS API to ensure users receive your updates as soon as possible.

Quinlan Jung

Gabriel Donadel

SOLD OUT

Fine-tuning for the “Native Feel”

React Native apps and websites already use platform UI components, of course, but a lot of what makes an app or a website look and feel truly at home in its native environment is up to how the developer uses their toolbox. Let’s learn how to employ platform-appropriate components, styles, UX, navigation patterns, and more to create cross-platform apps that nonetheless feel cohesive within Android, iOS and Web.

Kadi Kraman

Cedric van Putten

Speakers

Buy Tickets

Charlie Cheever

Expo

Jon Samp

Expo

Evan Bacon

Expo

Laura Beatris

Clerk

Krzysztof Piaskowy

Software Mansion

Enzo Manuel Mangano

Reactiive

Aaron Grider

SpaceX

Nick Lopac

SpaceX

Delphine Bugner

Mistral

Miłosz Filimowski

Software Mansion

Keith Kurak

Expo

Alex Hunt

Mateusz Kopciński

Software Mansion

Kiryl Ziusko

Margelo

Sojin Park

Toss

Devlin Duldulao

Crayon Consulting

Saúl Sharma

Louisville Geek

Alex Chou

Partiful

Anisha Malde

Amazon

Łukasz Chludziński

Callstack

Perttu Lähteenlahti

RevenueCat

Michael Blanchard

NFL

Jacob Arvidsson

JPMorganChase

Rafael Mendiola

Hinge Health

Jay Meistrich

Bravely

Kim Chouard

Odisei Music

Brought to you by

Organizer

Software Mansion is a software development agency focused on building developer tools and open-source software. We're the React Native core contributors, experts in multimedia & streaming and community builders.

Visit the website

Main Partner

With Expo, you can create universal native apps with React that run on Android, iOS, and the web. Expo builds a whole ecosystem of tools that will help you to develop, review and deploy your apps with ease.

Visit the website

Media Partners

Become our Sponsor

Promote your brand among the growing React Native community. There is no better place to showcase your brand than App.js Conf!

See the sponsorship offer

Our previous sponsors

App.js on social media

This was my 1st time at @appjsconf , and it was amazing.

Met a lot of people from community.

Learned a lot about RN, and expo

Attended a workshop too.

Food was yummy.

Arrangement and venue was good

and goodies were ❤️

See you all next year 👋 pic.twitter.com/RAjsswZh7q
— Neha Sharma (@hellonehha) May 26, 2024

App.js was INSANE. So honored to share the stage with so many incredible developers.

Thank you @swmansion & @expo for hosting an amazing event. pic.twitter.com/WkpC0aMNni
— Aaron Grider (@aarongrider) May 25, 2024

Thank you @appjsconf that was an amazing conference filled with amazing people. pic.twitter.com/j2W05Nwd4A
— Gant Laborde - 🇺🇦 (@GantLaborde) May 26, 2024

Back and almost recovered from @appjsconf this year 🇵🇱

Always an amazing experience reconnecting with all the folks pushing @reactnative to new heights 🙌❤️

Was mostly working through it so didn't get as many photos/videos, but these are my faves 😍 pic.twitter.com/nvLujFwWV1
— Taz Singh (@tazsingh) May 26, 2024

Thank you so much for having me @appjsconf! I am still blown away with the level of production, the number of interesting talks, the tasty food and the amazing community platform you have created! Hope to see you again next year. 💚👏🏻 pic.twitter.com/6fnHFgeFkn
— Britta Evans-Fenton (@13ritta) May 25, 2024

WHAT CAN’T BE DONE IN REACT NATIVE?

Coming to you from @appjsconf in beautiful Krakow, Poland.

Insane talks - my favourite was @aarongrider showing how the @SpaceX @Starlink app is built 🤯

📸 - catching up with the animation GOAT @wcandillon pic.twitter.com/0wFhDFjjBC
— Henry Moulton (@HenryMoulton) May 25, 2024

@kzzzf gave one of the coolest and most entertaining talks @appjsconf. Huge shoutout, loved the inception part. pic.twitter.com/hAzTdaIZVt
— Hirbod (@hirbod_dev) May 24, 2024

Thank you @appjsconf for having me. The first time in front of an audience this large. It was an amazing experience. And great conference. pic.twitter.com/w5YtpwhHrP
— Krystof Woldrich (@krystofwoldrich) May 24, 2024

The Reanimated workshop @appjsconf with @kacperkapusciak was amazing. Thanks to everyone that joined, you’re awesome!

Ps: don’t forget your badge tomorrow! pic.twitter.com/MfXt2M8e88
— Catalin Miron - AnimateReactNative.com (@mironcatalin) May 22, 2024

Standing backstage waiting to give what is my first talk on a conference - kind of crazy, it’s literally a dream-came-true, so thanks @appjsconf !! hopefully everything goes for the best🤞 pic.twitter.com/09Iyu3K2T9
— Delphine Bugner (@DelphineBugner) May 24, 2024

1st time attending @appjsconf in person, and it was amazing 🔥🔥.
I had the chance to meet a lot of people from the amazing RN community 💚

Thank you, @swmansion and @expo, for the amazing work. pic.twitter.com/EFsK5PWbw2
— Youssouf El Azizi (@ElaziziYoussouf) May 27, 2024

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Venue

Stara Zajezdnia

12 Świętego Wawrzyńca

31-060 Kraków

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Frequently asked questions

How long does the conference last?

In 2025, the conference starts on May 28 and ends May 30. The workshops are scheduled for May 28, while the conference part will happen on May 29 & 30.

What is the conference about?

We focus mainly on React Native and Expo.

Where can I buy the tickets?

Please go to www.appjs.co/tickets to book your spot

Are you looking for speakers? How can I apply?

The call for papers process has ended for 2025.

What’s the difference between Conference and Workshop tickets?

Conference ticket gives you access only to the conference days (May 29th and 30th), while the workshop ticket includes the conference & workshop days (May 28-30)

What’s included in the ticket price?

Depending on the type of ticket (see the previous question) you get access to either conference or both conference and workshops. You will also get a welcome bag with swag, snacks & drinks throughout entire conference, lunch and an afterparty.

Will there be a live stream?

Yes, we live stream the conference part (not the workshops though).

If I can’t attend the conference, can I give the ticket to someone else?

Yes, you can reassign the ticket to your friend or colleague. You should have this option in your email order confirmation. If you’re uncertain how to do this, please contact us at contact@appjs.co.

Are there any vegetarian/vegan meals available at the event?

Both vegetarian and vegan options will be available.

Can I get an invoice for my order?

Yes, we’re issuing the invoices and sending them within 10 days from the purchase date. Just remember to fill out all the necessary information in the order form.

Early birds tickets are available!

Use code “early30” for 30% off

Organized by Software Mansion, powered by the community.

App.js Conf

Join the biggest React Native & Expo-focused conference.

28–30 May ‘25

Kraków, Poland

Workshops

Read more

Animations and Interactions – Intro

Kacper Kapuściak

Catalin Miron

Animations and Interactions – Advanced

Kacper Kapuściak

Catalin Miron

Performance – analysis & optimization techniques

Bartek Błoniarz

Tomasz Zawadzki

Mobile & Web with React Native

Błażej Kustra

Mateusz Titz

3d graphics with WebGPU, Three.js & Reanimated

Krzysztof Piaskowy

Production-ready Patterns for EAS Update

Quinlan Jung

Gabriel Donadel

Fine-tuning for the “Native Feel”

Kadi Kraman

Cedric van Putten

Speakers

Buy Tickets

Charlie Cheever

Expo

Jon Samp

Expo

Evan Bacon

Expo

Laura Beatris

Clerk

Krzysztof Piaskowy

Software Mansion

Enzo Manuel Mangano

Reactiive

Aaron Grider

SpaceX

Nick Lopac

SpaceX

Delphine Bugner

Mistral

Miłosz Filimowski

Software Mansion

Keith Kurak

Expo

Alex Hunt

Meta

Mateusz Kopciński

Software Mansion

Kiryl Ziusko

Margelo

Sojin Park

Toss

Devlin Duldulao

Crayon Consulting

Saúl Sharma

Louisville Geek

Alex Chou

Partiful

Anisha Malde

Amazon

Łukasz Chludziński

Callstack

Perttu Lähteenlahti

RevenueCat

Michael Blanchard

NFL

Jacob Arvidsson

JPMorganChase

Rafael Mendiola

Hinge Health

Jay Meistrich