Comparison

iGauge vs Duet Display

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

Head to head
About

iGauge

Connect your smart mobile device to i-Gauge pumps via Bluetooth to monitor tire pressure. Supports multiple units and tire types, with battery power detection.

Highlights
  • Bluetooth connectivity to i-Gauge pumps
  • Supports Mountain, Road & Shock tire molds
  • Multiple unit support (PSI, BAR, KG/CM²)
  • Battery power detection
Features
Read full description

This App lets you establish and maintain a link between "i-Gauge pumps" and your smart mobile devices with Bluetooth® Smart(BLE4.0). 1.Supported molds: Mountain, Road & Shock 2.Supported Units: PSI, BAR & KG/CM² 3.Battery power detection

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

Screenshots

iGauge4 screens
Duet Display3 screens

Verdict

The call

The clearest difference is rating: Duet Display at 4.4 against iGauge's 2.4. Duet Display also leads on ratings volume (49K vs 17) and review sentiment (46% vs 29%). iGauge's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price and update cadence 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. iGauge asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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 17, so its average is the more settled of the two. Written reviews point the same way: 29% of iGauge's written reviews are positive against 46% of Duet Display's.

UpkeepUpdate frequency

iGauge ships an update every 6 weeks, Duet Display every 3 weeks. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

Scorecard8 real differences · 2 level
iGauge versus Duet Display: the parameters behind the verdict, then further details
ParameteriGaugeDuet Display
PriceFreeFree
Rating2.4 (17 ratings)4.4 (49K ratings) — better
Positive reviews29.2% of reviews45.5% of reviews — better
Number of ratings1749K — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod, Vision Pro — better
Requires iOS9.0 — better12.0
Further details — not scored
Size2 MB69 MB
Age rating4+4+
DeveloperCO-LUCK ENTERPRISE CO., LTDDuet, Inc.

Customer experience

iGauge

All ratings17 ratings
Positive35.3%
Neutral0.0%
Negative64.7%
Written reviews24 reviews
Positive29.2%
Neutral8.3%
Negative62.5%

Duet Display

All ratings48,585 ratings
Positive86.2%
Neutral3.1%
Negative10.7%
Written reviews2,382 reviews
Positive45.5%
Neutral6.7%
Negative47.8%

Bugs and requests

iGauge

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

iGauge

No 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

Questions

Is iGauge free?
iGauge is free to download, with no in-app purchases.
Is Duet Display free?
Duet Display is free to download, with in-app purchases available.
Which has better reviews, iGauge or Duet Display?
Duet Display is rated higher. iGauge averages 2.4 out of 5 from 17 ratings, while Duet Display averages 4.4 from 49K ratings.
Do iGauge or Duet Display have ads?
Duet Display shows ads; iGauge does not.
Which is updated more often, iGauge or Duet Display?
iGauge ships an update every 6 weeks, and Duet Display every 3 weeks. Most recently, iGauge was updated on September 29, 2026 and Duet Display on October 3, 2026.

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