# Duet Display vs Twomon SE

The clearest difference is price: Duet Display at Free against Twomon SE's $9.99. Duet Display also leads on rating (4.4 vs 4.0) and update cadence (every 3 weeks vs every 6 months). Twomon SE's advantage is review sentiment (85% vs 45%) and in-app purchases (none vs 6).

Duet Display is free to download; Twomon SE costs $9.99 up front. Duet Display sells 6 in-app purchases, starting at $3.99 per month. Twomon SE asks for nothing beyond the download.

Duet Display holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Duet Display has 49K ratings behind it against 57, so its average is the more settled of the two. Written reviews complicate that: 45% of Duet Display's written reviews are positive against 85% of Twomon SE's, so the app with the better star average is not the one people write more warmly about.

Duet Display ships an update every 3 weeks, Twomon SE every 6 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Duet Display | Twomon SE |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.4 (49K ratings)](https://appshunter.io/ios/app/duet-display/id935754064/reviews)** | [4.0 (57 ratings)](https://appshunter.io/ios/app/twomon-se/id1420380805/reviews) |
| Number of ratings | **49K** | 57 |
| Positive reviews | 45.5% of reviews | **84.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 50 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Vision Pro** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Duet, Inc.](https://appshunter.io/developer/935754063) | [DEVGURU Co., Ltd.](https://appshunter.io/developer/543483097) |

## 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


### Twomon SE

[App page](https://appshunter.io/ios/app/twomon-se/id1420380805)

Transform your tablet into a portable USB monitor for your computer. Expand your workspace for lectures, video editing, or any task requiring more screen real estate. Simply connect your device and instantly gain an additional display.

**Highlights:** Turns tablet into USB monitor, Portable dual monitor solution, Expands computer workspace, Easy USB connection, Supports Windows and iOS

**In-app purchases:** none


## Frequently asked questions

### Is Duet Display free?

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

### Is Twomon SE free?

Twomon SE costs $9.99, with no in-app purchases.

### Which has better reviews, Duet Display or Twomon SE?

Duet Display is rated higher. Duet Display averages 4.4 out of 5 from 49K ratings, while Twomon SE averages 4.0 from 57 ratings.

### Do Duet Display or Twomon SE have ads?

Duet Display shows ads; Twomon SE does not.

### Which is updated more often, Duet Display or Twomon SE?

Duet Display ships an update every 3 weeks, and Twomon SE every 6 months. Most recently, Duet Display was updated on October 27, 2026 and Twomon SE on October 24, 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.*