Become an expert React Native developer faster

Jump into the tutorials and courses you need to quickly troubleshoot bugs and gain confidence while learning to publish iOS & Android apps.

Simon Grimm, the creattor of
React is all you need

Take a shortcut from web developer to mobile development fluency with guided learning.

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

Learn with Tutorials, Projects & Courses

Jump into the specific tutorials you need to get unstuck, work toward projects, or take a course that suits your goals. We’re free form so you can focus on what’s most important to you.

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Stay Engaged

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

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Get Support & Get Unstuck

Join our Discord or Office Hours and get help when you get stuck. Our community would be thrilled to support you.

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Stay relevant

We produce a podcast and free YouTube content to keep you up-to-date on industry news and are continuously updating our course materials.

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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


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


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


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!

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.

This is the way

Test us out for free and upgrade to PRO when you're ready to commit.


Survey what Galaxies has to offer

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Next level


$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
Knowledge is power

Frequently asked questions

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 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 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.

Stop Googling around. Start learning React Native, today.

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