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Frax - The First Realtime Immersive Fractals

By Iter9, LLC

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*** 50% Off for a Limited Time!! ***

** Macworld Editors' Choice Award Winner! **

Smithsonian: “Immersive.” CNET: “Spectacular.” Macworld: “Exquisite.”

Frax is an art program that puts the “equations of nature” in the palm of your hand. Frax is powered by fractal geometry, the same principle that creates patterns of self-similarity in our natural world. From spiral galaxies to hurricanes, from tree limbs to branching blood vessels, the universe is filled with endless variation and staggering beauty. Frax visualizes this natural geometric code, so you can explore vast animating digital landscapes and make a masterpiece on your touchscreen.

Zoom deep into your creations. Use multi-touch gestures to fly through and explore intricate shapes and patterns. Tilt-to-steer through animating digital worlds, as you challenge yourself to chart a course for a long and beautiful flight –all at a depth range of a trillion-to-one.

Unleash your inner artist with complex color gradients to smoothly tint and shade your fractal shapes, two light sources for glossy reflections, and novel textures. The combinations are endless: supersmooth or wildly chaotic, metallic sheen or pearly white, subtle shades, stark monochrome or screaming supergloss. Or upgrade to Pro to access almost 100 parameters and controls!

Then share your creations with your friends via Facebook, Twitter and text. Or invite other users to step into your animating world by sharing a live preset link. You can render high-quality images to your photo library or create ultra-high quality 50 Megapixel renders with an IAP. And for the first time, you can now record VIDEO of your Frax animations directly within the app! (Pro IAP required.) Our users have put their designs on canvas, posters, scarves, T-shirts and textiles. The creative possibilities are endless!

What will Frax inspire in you?

We hope you enjoy Frax!
Ben Weiss • Kai Krause • Tom Beddard

Note: Frax is one of the most math-intensive apps on iOS! We recommend an iPhone 5 or newer.

What's New in Version 1.4.2

- Updated for iOS 10
- On-Phone Renders now Quad HD (3840x2160)!
- Fixed issues with Pro Upgrade IAP process
- Cloud Renders now up to 200 Mpx with Pro IAP
- Miscellaneous bug fixes and improvements

** If you're feeling generous, please leave us a review or rate us on the App Store. It helps us greatly, and we always love to know what you think! **

iPhone Screenshots

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Customer Reviews

Pretty good...

This app is really good. The only thing that really keeps it from being great is the GUI. When it comes to the gestures you use to change the color, texture, lighting, etc., the gestures aren't intuitive. I've been using this app for a while and I'm still not entirely sure what they are. I've gone through the tutorial more than once, but they're not intuitive, so they just don't stick with me. The fractals are great to navigate and alter, but with the gestures being so unintuitive, it's hard to get things as I really want them. I feel like the great images I've come up with are more a matter of luck than choice. I also don't really like the layout of the controls. I just found some menu that I didn't even know was there, after using the app for a while. One of the foundations of GUI design is that it should be self-explanatory. So, while I do love playing with the app, I also feel that the GUI could really stand to be improved. It's a great idea for an app, though. I love math and I love fractals. It really showcases the beauty of math and allows people to be able to play with it -- something I wish they did more of in Math classes.


This is one of my all time favorite apps. I'm an artistic person, and I'm also into science. Exploring the virtually infinite maps of the Mandelbrot and Julia fractal sets has been like going hunting for something nobody's found before. I've probably spent at least 50 hours so far looking around, tweaking the texture, color and lighting settings, rendering the best things I find to my phone and uploading them to the Frax website so other people can see & use them. Upgrading to the pro version is definitely worth the money, most importantly in my opinion because it greatly increases the complexity and depth that you can explore of the fractals. It's also been really great after a bad day to use in the evening and forget about anything negative and not have any specific goal like a game would, but just relax and create. Very, very great app.

Intuitive professional app with loads of inspiration and fun

This is a brilliant app worth every penny. It's liquid fast for maximum creativity. You can do professional work thanks to the extremely high resolution cloud renders. I love exporting my renders into other apps for additional processing.
The developers have a long history in creating creative tools. Hope the masterminds come out with more apps soon.

Frax - The First Realtime Immersive Fractals
View in iTunes
  • $0.99
  • Category: Entertainment
  • Updated:
  • Version: 1.4.2
  • Size: 99.2 MB
  • Languages: English, French, German, Italian, Japanese, Korean, Simplified Chinese, Swedish
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Frax Pro Upgrade$4.99
  2. Pack of 1000 Cloud Credits$9.99
  3. Pack of 240 Cloud Credits$5.99
  4. Pack of 20 Cloud Credits$0.99
  5. Pack of 80 Cloud Credits$2.99

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