Comparison

Duet Display vs Luna Display

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

Luna Display

Transform your iPad into a wireless second display for your Mac or PC. This hardware-enabled solution offers low latency and high image quality, supporting touch gestures and Apple Pencil for a seamless extension of your computer's capabilities.

Highlights
  • Wireless second display for Mac/PC
  • Supports touch and Apple Pencil
  • Low latency performance
  • Mix and match devices (PC-to-iPad, Mac-to-iPad)
  • Headless mode for Mac mini/Pro
  • Connect via Wi-Fi or USB
Read full description

Turn your iPad into a wireless second display for Mac or PC. Purchase hardware at www.lunadisplay.com — available for USB-C, HDMI, and Mini DisplayPort. MIX AND MATCH DEVICES Luna Display seamlessly extends your computer to another screen. Make the most of your devices with Luna Modes: · PC-to-iPad · Mac-to-iPad · Mac-to-Mac · Headless Mode (for Mac Pro and Mac mini) SETS UP IN SECONDS Simply plug Luna into your computer, launch the Luna apps, and you’re off and running. Hardware is available for purchase at lunadisplay.com. DESIGNED FOR HEAVY-DUTY WORK Luna's hardware ensures compatibility with any desktop app, delivering stunning image quality and low latency performance at 16ms. You get all the reliability of a traditional monitor, with the flexibility of your iPad. CONNECT OVER WIFI OR USB Luna was designed from the very beginning to work wirelessly. Your devices will automatically connect if they’re on the same WiFi network. And if WiFi isn’t available, you can also connect your devices over USB. FULL TOUCH SUPPORT AND GESTURES Luna Display acts as a complete extension to your computer, with full support for: · External keyboards · Apple Pencil · Touch interactions (pinch, pan, zoom, tap) SYSTEM REQUIREMENTS · Primary PC: Microsoft Windows 10 64-bit, Build 1809 or later · Primary Mac: macOS 10.13 (El Capitan) or later · Secondary iPad: iOS 12.1 or later · Secondary Mac: macOS 10.13 (El Capitan) or later FOR ARTISTS: WORKS WITH ASTROPAD Luna fully integrates with our award-winning drawing software Astropad Studio. Luna extends Astropad Studio to create a fully customizable drawing tablet on your iPad. With Luna, your art is no longer limited by the size of your computer display. THE POWER OF OUR LIQUID TECHNOLOGY Using our proprietary LIQUID Technology, Luna Display provides crystal clear image quality, reliable performance, and wireless flexibility. · Uncompromised image quality · Lag-free performance at 60 frames per second · GPU acceleration, so your computer stays fast and optimized · Hand optimized ARM & x86 assembly to maximize battery life · Velocity Control, which analyzes network conditions dozens of times per second PRESS · “Luna’s visual fidelity is frankly stunning” — TechCrunch · “Luna will change your travel workflow” — iMore · “For the first time a wireless solution has impressed us” — Apple Insider GET IN TOUCH · Support: support@astropad.com · Instagram: @astropadco · Twitter: @astropad · Facebook: facebook.com/astropadco

Screenshots

Duet Display3 screens

Verdict

The call

The clearest difference is in-app purchases: Luna Display at none against Duet Display's 6. Luna Display also leads on ads (none vs shown) and review sentiment (76% vs 46%). Duet Display's advantage is ratings volume (49K vs 4K) and update cadence (every 3 weeks vs every 2 months). On price and iOS requirement 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. Luna Display asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Luna Display 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 4K, 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 76% of Luna Display's.

UpkeepUpdate frequency

Duet Display ships an update every 3 weeks, Luna Display every 2 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard8 real differences · 2 level
Duet Display versus Luna Display: the parameters behind the verdict, then further details
ParameterDuet DisplayLuna Display
PriceFreeFree
Rating4.4 (49K ratings)4.8 (4K ratings) — better
Positive reviews45.5% of reviews76.3% of reviews — better
Number of ratings49K — better4K
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Vision Pro — betteriPad
Requires iOS12.0 — better12.1
Further details — not scored
Size69 MB67 MB
Age rating4+4+
DeveloperDuet, Inc.Astro HQ

Customer experience

Duet Display

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

Luna Display

All ratings3,900 ratings
Positive97.3%
Neutral1.3%
Negative1.4%
Written reviews283 reviews
Positive76.3%
Neutral4.9%
Negative18.7%

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

Luna Display

From 4K App Store ratings

What we love

  • 🚀 Reliable even when Sidecar is not
  • 🚀 Absolutely magic in every respect
  • 🚀 Headless Mac
  • 👍 Great software
  • 🚀 Really Cool Way to Use IPad with Windows or Mac

Room to improve

  • 🔑 Keyboard Input on screen…
  • 🐛 Constantly begging for a rating
  • 🔑 Nice product if connected by wire
  • 🐛 Cannot right click with pencil
  • 🔑 No full screen on iPadOS 18.2 external displays.

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

Luna Display

Reported bugs

3 issues
  • No full screen on iPadOS 18.2 external displays.
  • Does not work anymore
  • Cannot pair with windows PC

Requested features

4 requests
  • Portrait mode
  • Locked cursor support
  • Magic Keyboard Support
  • Automatic login in headless mode

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
None

Luna Display

No in-app purchases

Questions

Is Duet Display free?
Duet Display is free to download, with in-app purchases available.
Is Luna Display free?
Luna Display is free to download, with no in-app purchases.
Which has better reviews, Duet Display or Luna Display?
Luna Display is rated higher. Duet Display averages 4.4 out of 5 from 49K ratings, while Luna Display averages 4.8 from 4K ratings.
Do Duet Display or Luna Display have ads?
Duet Display shows ads; Luna Display does not.
Which is updated more often, Duet Display or Luna Display?
Duet Display ships an update every 3 weeks, and Luna Display every 2 months. Most recently, Duet Display was updated on September 24, 2026 and Luna Display on September 22, 2026.

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