Principle Mirror is the companion app to Principle for Mac, a tool for designing interactive interfaces. Principle Mirror can open Principle files from other apps or mirror Principle for Mac when plugged in.

“I just wanted to write to you quickly just to say — this. is. amazing. while I was watching the first tutorial I got tears in my eyes! seriously.”
Hugo Ahlberg
Designer, IDEO

"This tool is amazing, very well done."
Patrick Wong
Designer, Lyft

What’s New

Version 5.3

Support for iOS 13

Ratings and Reviews

4.9 out of 5
8 Ratings

8 Ratings

Alekplay ,

Great companion to a great product

Principle as a whole is a game changer, can't praise it enough. But my review is about this specific iOS companion. Super easy to use, just plug it in and you're all set. One minor drawback is that it should be easier (or at least more obvious) to the user how to restart the animation. Also wifi connection capabilities would be great, but it still deserves a solid 5 stars!

Areus Wade ,

Killer to pair with Desktop app.

Honestly with the slightest bit of love and attention to detail the desktop application provides, you can make anything feel real.

Hoping for a wider array of video support in the future. Unsure which codecs that support transparency are usable in Principle Mirror. I’ve had no luck so far, but it’s honestly the only con I could identify.

Looking forward to more from Daniel!

Lucas Cerro ,

Designer, Coup

This is incredible. This is like Sketch for prototype animation. Makes pretty much all other prototyping tools seem overly complicated (and they are). Congrats on an awesome product and thank you for this.


Daniel Hooper
1.1 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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