Become an expert React Native developer faster

From fundamentals to publishing iOS & Android apps, Galaxies helps you to become a React Native developer fast.

React is all you need

Turning web developers into React Native experts

Learn to use React Native to build production-ready, native mobile apps for both iOS and Android based on your existing web development skills.

React React
React

Tailwind Tailwind
Tailwind

Node.js Node.js
Node.js

CSS CSS
CSS

TypeScript TypeScript
TypeScript

GraphQL GraphQL
GraphQL

JavaScript JavaScript
JavaScript

VSCode VSCode
VSCode

Rest API Rest API
Rest API

Firebase Firebase
Firebase

Supabase Supabase
Supabase

React Native React Native
React Native

Simon Grimm

Hi, I'm Simon 👋

You may know me from my popular YouTube videos or my other project, Ionic Academy.

I switched from native iOS to cross-platform app development 9 years ago and never regretted it. Build faster, target more platforms, and have more fun!

I'll be your guide on this journey, and I'm thrilled to share all the tips and tricks I've learned over the years so you can confidently create React Native apps too.

signature-simon
Practical courses

Become a confident React Native Developer

Dive into latest technologies and stand out from the crowd. Prepare yourself for the next job and stay one step ahead of the rest. We teach you everything you need to know to.

Learning experience

Devs ❤️ us

Don't take our word for it—here's what other developers say about us.

Anna Cheng

Anna Cheng

Web Developer

I love it! Thanks for providing these quality courses. As a junior React web developer, here is a great place to start my React Native journey!

Shawn Fitzgerald

Shawn Fitzgerald

Mobile Architect

When Galaxies was announce with a React Native focus I knew I needed to join. Best decision ever. The materials, articles, and depth of coverage are stellar (no pun intended).

Chadi Osseiran

Chadi Osseiran

Developer

Simon you are one the most motivational, experienced, enthusiast person I have encountered while starting my career in development. You boosted my knowledge, gave me confidence, improved my work, creativity and innovation in many ways.

Arif Ahmed

Arif Ahmed

Developer

The clarity with which everything is presented in Galaxies is phenomenal. Highly recommended to head here to learn something new and brush up old concepts in a better way. Happy development!

Joshua Adu-Mensah

Joshua Adu-Mensah

Mobile Developer

Watching Simons videos always taught me how to solve real world problems but having a live meeting with him revealed so much more about why he invest so much into his courses and videos. He simply wants to see us succeed and find fulfillment in learning and becoming better developers.

Jason McFarlane

Jason McFarlane

Founder

Simons courses are very intuitive, clear and easy to follow while still packing a punch! I was able to leverage my current knowledge of react and quickly overcome the react-native learning curve to start producing my own apps. Highly recommend, you wont regret!

Tyler Sargent

Tyler Sargent

Software Engineer

The Kent C Dodds of React Native! Simon's courses have been super helpful as I have transitioned from React on the web to React Native. Highly recommend!

your way

You are the Captain

We don't force you into a schedule - you decide when, what and how you want to learn.

QuickWins

Short form content for bite-sized dev tips—in video & text form. Think of them like a refreshing solar wind.

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Tutorials

Long form, written tutorials with outlines for easy navigation. For when you want a good read on a complex topic and c+p code.

tutorial illustration
pro
Courses

In-depth screencasts with a flexible player so you can watch every step to build an app, set your own speed and save your favorite lessons.

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pro
pro

Get the most out of Galaxies.dev and unlock super powers with our PRO mode. This is how you become a stellar developer.

  • Access all pro courses
  • Join our group coachings
  • Get the code from GitHub
  • Exclusive pro tutorials
Push your boundries

Be a Meerkastronaut

A meerkat in space might be strange, but like Mika the meerkat, developers strive, learn and grow, going off into the unknown.

So, be like Mika the Meerkastonaut and join galaxies.dev. We're looking for a few good space rangers.

Free or PRO.
Get started on your own terms, and when you're ready add jet fuel to your rocket and go PRO.
Become a React Native native.
Learn, and keep up-to-date with, the latest libraries, technologies & technique.
Build real-world apps.
Learn common patterns of modern development, to get the job you want.
Mika the meerkat astronaut
This is the way

Invest in your career by becoming a PRO 🪐

Start for free and upgrade to PRO when you are ready

FREE

$0

Access essentials and get started on your journey.

  • Free tutorials & videos
  • Learn essential React Native concepts
  • Be part of our tribe
  • Get support with your projects

Next level

pro

$25 USD /month

Become a stellar React Native developer faster with the right content & support.

  • Access all pro courses
  • Join our group coachings
  • Get the code from GitHub
  • Exclusive pro tutorials
community

Be part of our tribe

It's easy to feel overwhlemed by modern web development. We are here to help, answer your questions in live Office Hours or hang out together on Discord.

Frequently asked questions

Knowledge is power

Do I need existing web development skills?

Most courses start at a basic level of Javascript. However, you should have a general development understanding and know about Javascript, HTML and CSS.

How often is Galaxies.dev updated?

New courses and tutorials will be released every month so you never run out of fresh content!

Where can I get a receipt or invoice?

You can manage your settings and subscription through your account settings inside the Stripe portal, where you can also download invoices.

Can I download the videos?

No, so far you can only stream them, but a Galaxies.dev app is planned for the future.

Can I get a refund?

Yes, if you are unhappy with your pro subscription you have a 14 day money back guarantee.

Learn once, write anywhere — be part of our mission.

Meerkat astronaut riding on a rocket illustration Sunrise coming out from behind the top half of a planet

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