# Duet Display vs Shapr 3D CAD modeling

The clearest difference is ads: Shapr 3D CAD modeling at none against Duet Display's shown. Shapr 3D CAD modeling also leads on rating (4.7 vs 4.4) and update cadence (every 5 days vs every 3 weeks). Duet Display's advantage is iOS requirement (13.0 vs 17.0). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Duet Display sells 6 in-app purchases, starting at $3.99 per month and Shapr 3D CAD modeling sells 6 in-app purchases, starting at $32.99 per month. Whichever you choose, the download price is not the number that matters.

Shapr 3D CAD modeling holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 49K and 34K respectively. Written reviews point the same way: 45% of Duet Display's written reviews are positive against 52% of Shapr 3D CAD modeling's.

Duet Display ships an update every 3 weeks, Shapr 3D CAD modeling every 5 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Duet Display | Shapr 3D CAD modeling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (49K ratings)](https://appshunter.io/ios/app/duet-display/id935754064/reviews) | **[4.7 (34K ratings)](https://appshunter.io/ios/app/shapr-3d-cad-modeling/id1091675654/reviews)** |
| Number of ratings | **49K** | 34K |
| Positive reviews | 45.5% of reviews | **52.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 59 MB | 1.7 GB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod, Vision Pro | iPhone, iPad, Mac, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Duet, Inc.](https://appshunter.io/developer/935754063) | [Shapr3D Zrt](https://appshunter.io/developer/1091675653) |

## What reviewers say

### Duet Display

[App page](https://appshunter.io/ios/app/duet-display/id935754064)

Transform your iPad or iPhone into an advanced, lag-free extra display for your Mac or PC. Interact with your computer using touch and gestures, and unlock professional drawing capabilities with Apple Pencil support.

**Highlights:** Extra display for Mac & PC, Lag-free performance, Touch and gesture support, Apple Pencil integration, Professional drawing tools, Portable productivity

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duet Starter (Monthly) | $3.99 | per month |
| Duet Air (Monthly) | $5.99 | per month |
| Duet Pro | $7.99 | per month |
| Duet Starter (Annual) | $39.99 | per year |
| Duet Air (Annual) | $49.99 | per year |
| Duet Pro (Annual) | $79.99 | per year |

**What reviewers like**

- 🚀 Works seamlessly as a second screen
- 👍 Useful for productivity and multitasking
- 🎨 Great for artists and designers
- 💻 Extends desktop to iPad
- ⭐ Excellent customer support

**What reviewers complain about**

- 🐛 Connectivity issues and crashes
- 🔋 High battery consumption
- 🔒 Subscription model for full functionality
- 🔍 Confusing setup process
- 💸 Expensive for the features provided

**Reported bugs**

- Incompatibility with certain software and drivers
- Laggy performance and input delays
- Unreliable connection and frequent disconnects

**Requested features**

- Improved resolution and scaling options
- Better support for older devices and Windows
- More customization and control over settings
- Wireless connectivity without subscription


### Shapr 3D CAD modeling

[App page](https://appshunter.io/ios/app/shapr-3d-cad-modeling/id1091675654)

Design and collaborate on 3D models and drawings from any device, even offline. This intuitive CAD tool offers a clutter-free interface and real-time 3D renders in AR for seamless visual communication. Export and import a wide range of file formats for a complete design-to-manufacturing workflow.

**Highlights:** Multidevice and offline capability, Adaptive, clutter-free user interface, Real-time 3D renders in AR, Extensive import/export file format support, Output 2D Drawings, Design-driven collaboration

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solo Subscription | $32.99 | per month |
| Pro Subscription | $37.99 | per month |
| Business Subscription | $59.99 | per month |
| Solo Subscription | $249.99 | per year |
| Pro Subscription | $299.99 | per year |
| Business Subscription | $499.99 | per year |

**What reviewers like**

- 🚀 Super easy to use
- 👍 Intuitive interface
- 🚀 Powerful features
- 👍 Great for beginners
- 👍 Excellent tutorials

**What reviewers complain about**

- 💰 Expensive subscription
- 💰 Pricing not suitable for hobbyists
- 🔒 Limited free version
- 🐛 Occasional bugs and crashes
- 👎 Navigation and controls could be improved

**Reported bugs**

- Unreliable performance after recent updates
- Difficulty deleting or modifying existing designs
- Inconsistent behavior when using the Apple Pencil

**Requested features**

- Add more affordable pricing tiers for hobbyists
- Improve undo/redo functionality
- Implement better file management and organization
- Add support for importing/exporting more file formats
- Enhance parametric modeling capabilities


## Frequently asked questions

### Is Duet Display free?

Duet Display is free to download, with in-app purchases available.

### Is Shapr 3D CAD modeling free?

Shapr 3D CAD modeling is free to download, with in-app purchases available.

### Which has better reviews, Duet Display or Shapr 3D CAD modeling?

Shapr 3D CAD modeling is rated higher. Duet Display averages 4.4 out of 5 from 49K ratings, while Shapr 3D CAD modeling averages 4.7 from 34K ratings.

### Do Duet Display or Shapr 3D CAD modeling have ads?

Duet Display shows ads; Shapr 3D CAD modeling does not.

### Which is updated more often, Duet Display or Shapr 3D CAD modeling?

Duet Display ships an update every 3 weeks, and Shapr 3D CAD modeling every 5 days. Most recently, Duet Display was updated on November 5, 2026 and Shapr 3D CAD modeling on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*