Comparison

Duet Display vs ASUS GlideX

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Duet Display

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
Read full description

#1 best-selling iPad app in US, Japan, UK, Germany, and 17 other countries! Duet turns your iPad or iPhone into the most advanced extra display for your Mac & PC. Developed by a team of ex-Apple engineers, Duet offers unparalleled performance and display quality - all with zero lag. — DO MORE — Be twice as productive by multitasking with two screens. And for those that travel, have a portable way to stay productive. — INCREDIBLY SIMPLE — To get started, plug your iPad into your desktop using your charging cable. The free Duet desktop app will automatically detect your device, and transform it into a high performance touchscreen display. There’s no need to worry about unreliable Wi-Fi, laggy performance, pixelated screens or managing network passwords. — TOUCHSCREEN — Interact with Mac & PC like never before, with touch & gestures, including two-finger scrolling, pan and zoom. And with our latest release, you can even add a touch bar to any iPad with any Mac. — PERFECT FOR APPLE PENCIL — With Duet Pro, you can turn your iPad and Apple Pencil into a professional graphics tablet. We’ve re-engineered our rendering algorithms for ultra-responsive drawing, optimized specifically for designers, illustrators and artists. Duet Pro also unlocks pressure & tilt sensitivity, hover, palm rejection, and more to seamlessly draw in the most powerful programs for professionals. Get precise control in Photoshop, Corel Painter, Lightroom, ToonBoom, Illustrator, Manga Studio and more.  — PRESS — TechCrunch - "Feels Like Magic" TIME - "Getting Work Done Faster and More Efficiently" The Guardian - "Lag-free" Forbes - "The simple thing to note is this...Duet Display works." The Verge - "Glorious Fluidity" Lifehacker - "It's fast, easy to use, and works great" Business Insider - "Zero lag and true retina resolution” Wall Street Journal - “It’s as easy as just plugging it in" — REVIEWS — “Awesome! My iPad Pro can be an extra monitor! Cool app” ~CEO of T-Mobile, John Legere “Very smooth and responsive indeed, plus you could use the touch screen to “click” on screen interfaces!” ~Photographer, Lok Cheung “Love the ability to use my iPad as a monitor with Duet.” ~Former Chief Evangelist of Apple, Guy Kawasaki “Just started using this app called Duet… Kinda love it so far.” ~Comedian and Youtube, Phillip DeFranco “All my mac folks look at the Duet app… GREAT!” ~Actor and Comedian, Sinbad  "I really like the app, I suppose the biggest compliment I can give is that it's so easy to setup it almost seems like an Apple product.” ~Early Adopter, M. Nightingale "Amazing solution for me by the way. Works as I was hoping for and actually my main reason for getting an iPad : )” ~Early Adopter, M. Gemzoe Duet Works With: All iPhones and iPads with iOS 7.0 and later All Macs with 10.9 (Mavericks) and later All PCs with Windows 7 and later Duet Pro Works With: All iPad Pros with Apple Pencil All Macs with 10.9 (Mavericks) and later All PCs with Windows 8.1 and later (64 bit) Duet Pro is an optional upgrade for additional features, and price may vary by location. Duet Pro subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. Manage Duet Pro in Account Settings after the optional upgrade. Learn more at http://www.duetdisplay.com Terms: https://www.duetdisplay.com/help-center/duet-terms-and-conditions Privacy Policy: https://www.duetdisplay.com/help-center/duet-privacy-policy

About

ASUS GlideX

Enhance your productivity by mirroring your phone's screen to your PC, using your computer's keyboard and mouse. Extend your display with your phone as a secondary screen for easier multitasking. Seamlessly control multiple devices and transfer files with a single mouse and keyboard.

Highlights
  • Screen mirroring to PC
  • Use phone as secondary display
  • Unify control across devices
  • Fast file transfer
  • Use phone camera as webcam
  • Hands-free PC phone calls
  • Remote PC file access
Features
Read full description

It's so easy to improve your efficiency with this convenient tool. Enjoy the amazing experience on any screen, on any device, anywhere! [Screen Mirror] Mirror your phone’s screen on your PC so you can use your PC's keyboard and mouse to navigate and input text instead of relying your phone's small screen virtual keyboard. Not only will your productivity improve significantly, you will also have a richer and less constrained visual experience. [Screen Extend] Use your phone or tablet as a secondary display on-the-go for dual-display convenience. This feature expands your space and can be exceptionally useful when you need to cross-reference multiple documents or visuals. Multitasking has never been easier. [Unify Control] Unify Control lets you control different devices and transfer files from one PC with a single mouse and keyboard, across different OSes, so you don’t need to switch between devices. * Support Wi-Fi and/or USB to connect mobile devices to the PC. * GlideX mobile app must be used together with GlideX for Windows (Win 10/11) [File Transfer] Simply drag and drop to send files to other PCs or mobile devices in the blink of an eye. It is many times faster than the traditional Bluetooth file transfer, with a user-friendly drag and drop experience to ensure seamless transfer among devices. [Shared Cam] Turn your mobile device camera into a webcam. Simply select “GlideX – Shared Cam” as the video source in your PC video conference app, then you can easily enjoy seamless webcam sharing. [Hands-Free Phone Calls] Make and take phone calls, which can be routed through your PC’s speakers and microphone. You can also access your phone’s contacts on your PC, so you can search for contacts and call them directly. There's no need to dig out your phone from your bag or pocket! [Remote Access] Use your mobile device to remotely access files stored on your ASUS PC and use your PC as a personal cloud replacement, which can be accessed from your mobile device, anywhere and anytime. Remote Access, including Remote File Access and Remote Desktop, can be extra beneficial for commercial users who need access to office files when on business trips or working from home. * Remote Desktop is not supported on Windows 10 Home edition. [URL Share] Simply click the Share icon in your PC's browser, and then click GlideX. A link to the webpage currently displayed will be instantly sent to another PC or a connected mobile device — where it will open automatically for seamless on-the-go convenience. GlideX for Windows link: https://www.microsoft.com/store/apps/9PLH2SV1DVK5 Learn more at ASUS Software Webpage: https://www.asus.com/content/GlideX/

Screenshots

Duet Display3 screens
ASUS GlideX4 screens

Verdict

The call

The clearest difference is review sentiment: ASUS GlideX at 92% against Duet Display's 46%. ASUS GlideX also leads on ads (none vs shown) and rating (4.8 vs 4.4). Duet Display's advantage is ratings volume (49K vs 2.3K) and iOS requirement (12.0 vs 14.0). On price, update cadence, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Duet Display sells 6 in-app purchases, starting at $3.99 per month and ASUS GlideX sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ASUS GlideX holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Duet Display has 49K ratings behind it against 2.3K, 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 92% of ASUS GlideX's.

UpkeepUpdate frequency

Duet Display ships an update every 3 weeks, ASUS GlideX every 6 weeks. Both last shipped on September 24, 2026.

Scorecard6 real differences · 4 level
Duet Display versus ASUS GlideX: the parameters behind the verdict, then further details
ParameterDuet DisplayASUS GlideX
PriceFreeFree
Rating4.4 (49K ratings)4.8 (2.3K ratings) — better
Positive reviews45.5% of reviews92.2% of reviews — better
Number of ratings49K — better2.3K
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Vision Pro — betteriPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size69 MB129 MB
Age rating4+4+
DeveloperDuet, Inc.ASUSTek

Customer experience

Duet Display

All ratings48,585 ratings
Positive86.2%
Neutral3.1%
Negative10.7%
Written reviews2,376 reviews
Positive45.5%
Neutral6.7%
Negative47.8%

ASUS GlideX

All ratings2,318 ratings
Positive96.4%
Neutral1.4%
Negative2.2%
Written reviews1,662 reviews
Positive92.2%
Neutral2.2%
Negative5.5%

User reviews

Duet Display

From 49K App Store ratings

What we love

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

Room to improve

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

ASUS GlideX

From 2.3K App Store ratings

What we love

  • 🚀 Fast and easy file transfer
  • 👍 Seamless cross-device connectivity
  • 💡 Versatile features (remote desktop, screen extension, camera share)
  • 👍 Convenient and user-friendly
  • 🚀 Reliable and stable performance

Room to improve

  • 🐛 Occasional connectivity issues
  • 🔋 Laggy performance over wireless connection
  • 🔒 Security concerns (hacking incident reported)
  • 💰 Subscription model for advanced features

Bugs and requests

Duet Display

Reported bugs

3 issues
  • Incompatibility with certain software and drivers
  • Laggy performance and input delays
  • Unreliable connection and frequent disconnects

Requested features

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

ASUS GlideX

Reported bugs

3 issues
  • Disconnects during use
  • Compatibility issues with certain devices
  • Pairing screen freezes or fails to connect

Requested features

4 requests
  • Support for iPad keyboard and trackpad
  • Improved compatibility with third-party apps and software
  • Automatic updates and syncing between desktop and mobile versions
  • Customizable mouse/cursor speed settings

In-app purchases

6 purchases

Duet Display

Subscriptions6
  • Duet Starter (Monthly)$3.991 Month
  • Duet Air (Monthly)7 Days trial$5.991 Month
  • Duet Pro7 Days trial$7.991 Month
Show 3 more
  • Duet Starter (Annual)$39.991 Year
  • Duet Air (Annual)7 Days trial$49.991 Year
  • Duet Pro (Annual)7 Days trial$79.991 Year
3 purchases

ASUS GlideX

Subscriptions3
  • Plus$0.991 Month
  • Pro$2.991 Month
  • Ultra$5.991 Month

Questions

Is Duet Display free?
Duet Display is free to download, with in-app purchases available.
Is ASUS GlideX free?
ASUS GlideX is free to download, with in-app purchases available.
Which has better reviews, Duet Display or ASUS GlideX?
ASUS GlideX is rated higher. Duet Display averages 4.4 out of 5 from 49K ratings, while ASUS GlideX averages 4.8 from 2.3K ratings.
Do Duet Display or ASUS GlideX have ads?
Duet Display shows ads; ASUS GlideX does not.
Which is updated more often, Duet Display or ASUS GlideX?
Duet Display ships an update every 3 weeks, and ASUS GlideX every 6 weeks. Most recently, Duet Display was updated on September 24, 2026 and ASUS GlideX on September 24, 2026.

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