# Duet Display vs iDocCam

The clearest difference is rating: Duet Display at 4.4 against iDocCam's 2.4. Duet Display also leads on monetization model (free with in-app purchases vs subscription) and ratings volume (49K vs 42). On price, update cadence, ads 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 iDocCam sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Duet Display holds the better App Store score, 4.4 against 2.4. That said, the two scores are not equally well evidenced: Duet Display has 49K ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 46% of Duet Display's written reviews are positive against 24% of iDocCam's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Duet Display | iDocCam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (49K ratings)](https://appshunter.io/ios/app/duet-display/id935754064/reviews)** | [2.4 (42 ratings)](https://appshunter.io/ios/app/idoccam/id1489559411/reviews) |
| Number of ratings | **49K** | 42 |
| Positive reviews | **45.5% of reviews** | 23.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 69 MB | 21 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Duet, Inc.](https://appshunter.io/developer/935754063) | [IPEVO](https://appshunter.io/developer/326593260) |

## 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


### iDocCam

[App page](https://appshunter.io/ios/app/idoccam/id1489559411)

Transform your phone into a document camera for large-screen projection. Control your device's camera in real-time and adjust live images. Connect to projectors or external displays for presentations and teaching.

**Highlights:** Real-time camera control, Document camera functionality, Large-screen projection, Wi-Fi connectivity to Visualizer, HDMI/VGA and AirPlay output, Image filters, Video recording

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Features (Monthly Plan) | $0.99 | per month |
| Full Features (Yearly Plan) | $9.99 | per year |
| iDocCam with Full Features | $19.99 | one-time |


## Frequently asked questions

### Is Duet Display free?

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

### Is iDocCam free?

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

### Which has better reviews, Duet Display or iDocCam?

Duet Display is rated higher. Duet Display averages 4.4 out of 5 from 49K ratings, while iDocCam averages 2.4 from 42 ratings.

### Do Duet Display or iDocCam have ads?

Both Duet Display and iDocCam show ads.

### Which is updated more often, Duet Display or iDocCam?

Duet Display ships an update every 3 weeks, and iDocCam every 3 weeks. Most recently, Duet Display was updated on September 24, 2026 and iDocCam on September 19, 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.*