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Fractal Atlas™

Fractal Atlas lets you explore fractals by touch: zoom deep into the Mandelbrot set, Julia sets, Newton fractals and more, or watch patterns like the Koch snowflake, dragon curve and Barnsley fern build up step by step.

Get Fractal Atlas on the App Store

Contact

Found a bug, have a question, or want to suggest a fractal? Open an issue on the project's GitHub page. Please include your device model and iOS version if you're reporting a problem.

Frequently asked questions

How do I move around?

Drag with one finger to pan, pinch to zoom, and twist with two fingers to rotate. The back button returns to your previous view, and the reset button returns to the starting view.

How far can I zoom?

Much further than most fractal apps. Past the point where ordinary graphics precision runs out, Fractal Atlas switches to a deep-zoom technique, so detail stays sharp at extreme magnifications. Very deep views can take a moment longer to draw.

Where do I start if I don't know where to look?

Tap “Surprise me” to jump to a well-known spot, such as Seahorse Valley or a miniature copy of the Mandelbrot set.

How do I save or share an image?

Tap the share button, then choose Save to Photos to save it straight to your photo library, Share… to send the image and a link to the same view through the iOS share sheet, or Copy link to copy just the link.

Why does the app ask for access to Photos?

Only so it can save the images you choose. The permission is add-only: the app can't see or read the photos already in your library. If you declined and want to save images, turn it back on in Settings › Fractal Atlas › Photos.

Why do saved images have a label in the corner?

Saved and shared images carry a small “Fractal Atlas™” label in the bottom-right corner. The view on screen is never labeled.

Does the app collect any data?

No. Everything runs on your device, and nothing about how you use the app is sent anywhere. See the privacy policy.

Fractal Atlas™ is a trademark of Kristopher John.