# Duet Air vs LCHSI SkoolTech Plus

The clearest difference is in-app purchases: LCHSI SkoolTech Plus at none against Duet Air's 2. LCHSI SkoolTech Plus also leads on ads (none vs shown). Duet Air's advantage is iOS requirement (12.0 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. Duet Air sells 2 in-app purchases, starting at $49.99 per year. LCHSI SkoolTech Plus asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Duet Air | LCHSI SkoolTech Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (1.9K ratings)](https://appshunter.io/ios/app/duet-air-remote-desktop/id1531326998/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 23.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Subscription | — |
| Size | 67 MB | 11 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Duet, Inc.](https://appshunter.io/developer/935754063) | [Michael Martin Abellana](https://appshunter.io/developer/1695378525) |

## What reviewers say

### Duet Air

[App page](https://appshunter.io/ios/app/duet-air-remote-desktop/id1531326998)

Transform your iPad or iPhone into an advanced remote desktop or an extra display for your Mac or PC. Experience unparalleled performance and zero lag, with touch and gesture support. Offers professional-grade drawing capabilities with Apple Pencil integration for artists and designers.

**Highlights:** Remote desktop functionality, Extra display for Mac/PC, Touch and gesture support, Apple Pencil integration for drawing, Wireless and wired connectivity, Zero lag performance

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duet Air (Annual) | $49.99 | per year |
| Duet Pro (Annual) | $79.99 | per year |

**What reviewers like**

- 🚀 Smooth performance
- 👍 Easy to set up
- 💡 Useful as a second screen
- 🚀 Zero lag
- 👍 Fantastic app

**What reviewers complain about**

- 🐛 Inconsistent connectivity
- 🐛 Buggy and unstable
- 💰 Expensive subscription
- 🐛 Laggy and low resolution
- 🐛 Crashes and freezes

**Reported bugs**

- Incompatible with Citrix
- Breaks Windows network
- Bricked user's PC
- Login screen issues
- Inconsistent performance

**Requested features**

- Support for older devices
- Improve wireless stability
- Add audio support
- Better integration with drawing apps
- Easier subscription cancellation


### LCHSI SkoolTech Plus

[App page](https://appshunter.io/ios/app/lchsi-skooltech-plus/id6746526313)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duet Air free?

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

### Is LCHSI SkoolTech Plus free?

LCHSI SkoolTech Plus is free to download, with no in-app purchases.

### Do Duet Air or LCHSI SkoolTech Plus have ads?

Duet Air shows ads; LCHSI SkoolTech Plus does not.

### Which is updated more often, Duet Air or LCHSI SkoolTech Plus?

Duet Air ships an update every 3 weeks, and LCHSI SkoolTech Plus every 3 weeks. Most recently, Duet Air was updated on October 27, 2026 and LCHSI SkoolTech Plus on October 28, 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.*