Comparison

Duet Display vs LotTrack Pro

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
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#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

LotTrack Pro

Features
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LotTrack Pro is vehicle inventory management built for independent auto dealers and small dealerships. Track every car from auction to sold — and know exactly what you made on it. STOP TRACKING INVENTORY IN SPREADSHEETS Kanban Board See every vehicle at a glance. Move cars through customizable stages, from Acquired to Sold, with a tap. VIN Scanner Scan a VIN barcode or photograph an auction receipt. AI extraction fills in year, make, model and pricing automatically, so you are not typing details off a windshield. Cost Tracking Log every dollar spent — purchase price, auction fees, transport, parts and labor — so you always know your true total invested. P&L Analytics Real-time dashboard KPIs, monthly profit breakdowns and per-vehicle financials. Always know where you stand. Buyer CRM Track every buyer and their purchase history. Build repeat business and know who is ready for their next vehicle. Photos and Documents Unlimited photos per vehicle, plus titles, bills of sale and any other paperwork, stored with the car it belongs to. Audit Trail A full history of every action on every vehicle — what changed, when, and who changed it — so your records stay complete and accountable. Branded PDF Reports One-tap P&L statements, inventory reports and deal sheets, all carrying your dealership's logo. WORKS WHEREVER YOU DO Your inventory stays in sync across your phone and the web, so the office, the lot and the auction lane all see the same numbers. SUBSCRIPTION Start with a 2-month free trial. Pro is $29.99 per month or $249.99 per year, and includes unlimited vehicles, unlimited photos, 50 AI scans a day (up to 400 a month), document uploads, the full audit trail and branded reports. Additional AI scan packs are available if you need more. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of that period. You can manage and cancel your subscription in your Apple Account settings after purchase. Any unused portion of a free trial is forfeited when a subscription is purchased. Privacy Policy: https://lottrackerpro.app/privacy.html Terms of Use: https://lottrackerpro.app/terms.html

Screenshots

Duet Display3 screens
LotTrack Pro4 screens

Verdict

The call

The clearest difference is ads: LotTrack Pro at none against Duet Display's shown. LotTrack Pro also leads on update cadence (weekly vs every 3 weeks). Duet Display's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.5). On price and in-app purchases 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 LotTrack Pro sells 4 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Duet Display ships an update every 3 weeks, LotTrack Pro weekly. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Duet Display versus LotTrack Pro: the parameters behind the verdict, then further details
ParameterDuet DisplayLotTrack Pro
PriceFreeFree
Rating4.4 (49K ratings) — better—
Positive reviews45.5% of reviews—
Number of ratings49K — better—
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Vision Pro — betteriPhone, iPod
Requires iOS13.0 — better15.5
Further details — not scored
Size59 MB64 MB
Age rating4+4+
DeveloperDuet, Inc.Evolution Software LLC

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

LotTrack Pro

Not enough reviews yet to summarise bugs or requests.

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
4 purchases

LotTrack Pro

Subscriptions2
  • LotTrack Pro Monthly2 Months trial$29.991 Month
  • LotTrack Pro Yearly2 Months trial$249.991 Year
One-time2
  • 100 AI Scans$9.99
  • 500 AI Scans$39.99

Questions

Is Duet Display free?
Duet Display is free to download, with in-app purchases available.
Is LotTrack Pro free?
LotTrack Pro is free to download, with in-app purchases available.
Do Duet Display or LotTrack Pro have ads?
Duet Display shows ads; LotTrack Pro does not.
Which is updated more often, Duet Display or LotTrack Pro?
Duet Display ships an update every 3 weeks, and LotTrack Pro weekly. Most recently, Duet Display was updated on November 2, 2026 and LotTrack Pro on October 24, 2026.

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