iPhone Screenshots


*** 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 200 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 5s or newer.

What's New

Version 1.4.7

- Fixes to Pro Video interface

Ratings and Reviews

4.8 out of 5
38 Ratings
38 Ratings

Phenomenal app


Everything i was looking for a fractal app to be like, and much much more. So entertaining to look at, pass time and make beautiful unique creations. Highly recommend it to anyone. Amazing.

I do wish however I could have a rainbow setting on color where it switches colors all over without me needing to press anything (I realize i can make the colors swirl, but its basically the same certain colors until i change the scheme with the color wheel thing)

By far the best fractal app


Endless exploring, beautiful rendering, massive custom tweaks, educational.... This is an app that keeps on giving with its advanced features and custom options, yet it is so well designed that the advance features don't stop you from enjoying it from the very first time you open it. Let's see, did I leave anything out? I'm sure I did, but they didn't!

Highly recommended!


This app sets itself apart by the attention to detail from the developers. Even without the Pro upgrade, you would never run out of different looks and art to create. But the pro adds a lot of extra features so that you can create some very unique looking designs


Iter9, LLC
103.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Korean, Simplified Chinese, Swedish
Age Rating
Rated 4+
©2018 iter9, LLC
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


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like