Principle Mirror vs ProtoPie Player
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Principle Mirror
Design interactive user interfaces with this companion app for a popular Mac design tool. Seamlessly open Principle files or mirror your Mac's design work directly to your device.
- Open Principle files
- Mirror Principle for Mac
- Interactive UI design
- Companion app functionality
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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
ProtoPie Player
This app allows you to view, test, and experience interactive prototypes created with a companion desktop tool. Access prototypes from the cloud or save them locally for offline use on your mobile devices. It enables easy sharing and testing of designs with colleagues, clients, or users.
- View and test prototypes
- Access cloud prototypes
- Save prototypes locally
- Use native device capabilities
- Control playback speed
- Share prototypes easily
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ProtoPie Player is a free companion app to ProtoPie Studio, a code-free prototyping tool on macOS & Windows. View, experience, and test prototypes on iOS and iPadOS easily. Access prototypes in the Cloud, save prototypes locally, and more—all from your iPhone or iPad. Ideal for yourself, your colleagues, stakeholders, clients, or users. ProtoPie Player is perfect for quickly testing prototypes made with ProtoPie, getting prototypes in anyone’s hands, and (remote) usability testing. To open prototypes on your iPhone or iPad, connect ProtoPie Player to ProtoPie Studio via WiFi or USB. Or just log in with your ProtoPie account to access your prototypes in the cloud. Also, it’s possible to open any prototype on your iPhone or iPad with a shareable link or shared via any other third-party solution—without connecting to ProtoPie Studio. With ProtoPie Player, you can: - Open any prototypes—shared via ProtoPie Cloud, email, Google Drive, Slack, or any other messaging and storage solution. - Use the iPhone and iPad their native capabilities in prototypes, e.g., camera, gyroscope, microphone, and more. - Control the play speed: slow down the prototype to experience the interactions with more detail. - Access prototypes in ProtoPie Cloud. - Save prototypes locally for offline usage ProtoPie Player is part of the ProtoPie ecosystem. ProtoPie is a prototyping tool to easily turn your interaction design ideas into realistic prototypes. Create interactive prototypes for mobile, desktop, web, and IoT. Get started with ProtoPie today!
Screenshots
Verdict
The clearest difference is rating: Principle Mirror at 4.2 against ProtoPie Player's 4.0. Principle Mirror also leads on monetization model (free vs ad-supported) and iOS requirement (11.0 vs 16.2). ProtoPie Player's advantage is review sentiment (58% vs 45%). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Principle Mirror holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 14 and 27 respectively. Written reviews complicate that: 45% of Principle Mirror's written reviews are positive against 58% of ProtoPie Player's, so the app with the better star average is not the one people write more warmly about.
Principle Mirror ships an update every 2 months, ProtoPie Player every 5 weeks. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.
| Parameter | Principle Mirror | ProtoPie Player |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (14 ratings) — better | 4.0 (27 ratings) |
| Positive reviews | 45.2% of reviews | 58.3% of reviews — better |
| Number of ratings | 14 | 27 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 1 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Hooper | Studio XID |
Customer experience
Principle Mirror
ProtoPie Player
In-app purchases
Principle Mirror
No in-app purchases
ProtoPie Player
No in-app purchases
Questions
Is Principle Mirror free?
Is ProtoPie Player free?
Which has better reviews, Principle Mirror or ProtoPie Player?
Do Principle Mirror or ProtoPie Player have ads?
Which is updated more often, Principle Mirror or ProtoPie Player?
Other comparisons
