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 5.2

Bug Fixes and Performance Improvements

Ratings and Reviews

4.8 out of 5
6 Ratings

6 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!

hamy89 ,

Works great, No Frills

Works exactly how you would expect. Perfect for presenting prototypes to stakeholders from your phone. Excited to see how this app evolves!

In the future it would be really nice to have Wifi updating, but is definitely not a deal breaker. Great app!


Daniel Hooper
1.5 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Hooper Software LLC


  • Family Sharing

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

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