Principle Mirror

Name: Principle Mirror
Rating: 4.2 (14 reviews)
Author: Daniel Hooper

By: Daniel Hooper

Interaction & UI Design

Features & Capabilities

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

User Growth & Download Statistics

App

By:

Daniel Hooper

Rating:

4.20

(14)

Version:

5.6 Last updated: 2025-06-04

Version code:

875294757

Creation date:

2015-08-31

Compatible devices:

Size:

1.00MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-28

Compare stats and ranking:

Ranking

# 346,832 ▼ 924

Other rankings

#19 in user experience keyword 19 ▲ 1#34 in figma keyword 31 ▲ 18#63 in ux keyword 14 ▼ 12

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Daniel Hooper

Apple Apps Store

https://apps.apple.com/us/app/principle-mirror/id991911319

Website:

http://principle.app

User Reviews

Principle Mirror is widely praised for fast, reliable operation, ease of use, and on-device interactivity that makes demos easy and impactful. Reviewers cite its strong animation tooling and the ability to store projects for client demos. However, it struggles with stability and UI bugs (random freezes, scrolling issues, restart gestures, and yellow boxes), plus font handling (non‑system fonts not packaged). Many users also want wireless/mirroring support and smoother performance with large files and sharing/tester workflows. Overall, powerful but in need of stability and feature polish.

Pros

Fast, smooth performance that reliably does what it’s supposed to.
Excellent for presenting prototypes to stakeholders with interactive on-device previews.
Very easy to use and quick to set up for demos.
Project storage and reset features are valuable for customer demos.
Powerful prototyping tool with strong animation capabilities.

Cons

Stability issues: frequent freezes and crashes.
UI/interaction bugs: scrolling not working on iPhone X, page state resets, and visual glitches like yellow boxes; restart gesture unreliable.
Font support is missing: non-system fonts aren’t packaged and are substituted with Helvetica.
Lack of wireless/mirroring: no Wi‑Fi live mirroring or wireless updates.
Performance problems with large files and lag.

Recent reviews

Pretty frustrating since most apple laptops don’t have a USB port anymore. It would be great to support over WiFi

by Dm*****, 2020-07-04

If I want to share a .prd file with someone to test a prototype they are unable to open the file in their Principle app. I want to share a link to the .prd via Dropbox. But when they download the file on mobile safari and tap “Open with Principle” under share, the file does not open. Impossible to share prototypes with team or testers.