Comparison

Marty's Magic Meter vs Duality Pro

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

Head to head
About

Marty's Magic Meter

This app transforms your phone into a magic device capable of detecting various things, from a friend's intelligence to a wizard's presence. Perform impressive magic tricks for your friends with customizable devices and sounds, keeping them guessing your secret.

Highlights
  • Phone as a magic device
  • Multiple detector types
  • Customizable device names
  • Secret trick for users
  • Spinner with controlled outcomes
  • Accomplice mode
Features
Read full description

The most diabolical magic trick on the app store! Your phone becomes a magic device that can detect anything. Have a friend who needs a shower? Use the Stink-O-Meter. Have a friend who keeps doing reeeeally stupid things? Use the Dumb Dumb Detector. Or maybe you have a cute kid dressed as a wizard? Use the wizard detector. Just move the detector close to your target and it goes off, making sounds and lighting up. How does it work? Only *you* know the magic trick. You can learn the trick in minutes, and it'll keep your friends guessing how you do it! The free version lets you try how one device. The full version comes with these added features: * Name your device whatever you want or select from tons of choices * Comes with 5 total different devices with different sounds and behaviors * One of these devices let's you spin a spinner with yes's and no's. The spinner will always stop on the choice *you* want and only you know the magic trick! * With an accomplice you can make this magic trick even harder to figure out for your friends. (Your accomplice doesn't need to purchase the full version)

About

Duality Pro

This app allows magicians to embed audience-thought-of numbers, words, or images into pre-recorded videos for astonishing performances. It offers a user-friendly interface for quick setup and can project videos onto large screens.

Highlights
  • Embed thoughts into videos
  • User-friendly interface
  • Large screen projection mode
  • Customizable videos
  • 11 input methods
  • Easy Mode setup
  • Includes generic videos
Features
Read full description

Duality Pro, now available on the App Store, offers a remarkable effect that redefines the boundaries of magic. This app allows magicians to astound audiences by seamlessly embedding their thought-of numbers, words, or images into a pre-recorded video. The ability to materialize personal thoughts into a visual medium is not only astonishing but also adds a contemporary twist to traditional magic. The app's ease of use is another key feature, appealing to both new and experienced magicians. Its user-friendly interface ensures quick, hassle-free setup, allowing performers to focus on their creativity and performance rather than getting bogged down with technical details. In essence, Duality Pro is more than just a tool; it's a revolutionary step in the world of magic, combining astonishing effects with simplicity and technological sophistication. It's an invitation to magicians to try it now and experience the future of magic in their performances. Play it BIG. You can also project the video on a large screen, to generate a great stage attraction (using a special mode that projects onto the screen). User-friendly Interface The one-time set-up (per video) takes only a few minutes It's always in your pocket, ready to perform The video is totally customizable. Apply your creativity and embellish it with your own style Both Portrait (for mobile) and Landscape (for large screens) are enabled Easy to set up (only 3 taps) – even easier to perform You show your spectators a video of yourself (or an assistant or an animated character) on your mobile screen, and ask a volunteer to think of any number (or name, picture, drawing, etc.). Towards the end of your own video, the item thought-of suddenly appears - embedded in the video. BOOOOOM!!! some extra info: 11 different input methods, to suit your preference Choose from 11 easy ways to send info to the video. Pick your favorite method and whether you want to send details before, during, or just 2 seconds before the prediction time, it's all possible. Just set it once and enjoy! Easy Mode An extra user-friendly interface that enables you to set up a new video in just 2-3 minutes, by setting only 3 parameters. Generic Videos The app includes a few ready-to-perform videos prepared by leading magicians. Just learn the input method (1 minute) and you are ready to perform. Users are required to pay for a Lifetime access in order to use the app. - Lifetime Access. - Lifetime duration. - 249$ Privacy policy and terms of use: https://www.cobra-magic.com/pages/privacy-policy-of-duality-3 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Marty's Magic Meter4 screens
Duality Pro4 screens

Verdict

The call

The clearest difference is update cadence: Marty's Magic Meter at every 3 days against Duality Pro's monthly. Marty's Magic Meter also leads on monetization model (free with in-app purchases vs paid) and review sentiment (67% vs 56%). On price, rating, ratings volume and ads 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. Marty's Magic Meter sells 1 one-off in-app purchase and Duality Pro sells 5 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Marty's Magic Meter holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 8 and 18 respectively. Written reviews point the same way: 67% of Marty's Magic Meter's written reviews are positive against 56% of Duality Pro's.

UpkeepUpdate frequency

Marty's Magic Meter ships an update every 3 days, Duality Pro monthly. Both last shipped on October 7, 2026.

Scorecard4 real differences · 6 level
Marty's Magic Meter versus Duality Pro: the parameters behind the verdict, then further details
ParameterMarty's Magic MeterDuality Pro
PriceFreeFree
Rating4.3 (8 ratings) — better4.1 (18 ratings)
Positive reviews66.7% of reviews — better55.6% of reviews
Number of ratings818 — better
Update frequencyEvery 3 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better12.0
Further details — not scored
Size98 MB360 MB
Age rating9+4+
DeveloperYitYat StudiosYaniv Levy

Customer experience

Marty's Magic Meter

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Duality Pro

All ratings18 ratings
Positive77.8%
Neutral5.6%
Negative16.7%
Written reviews9 reviews
Positive55.6%
Neutral0.0%
Negative44.4%

In-app purchases

1 purchases

Marty's Magic Meter

One-time1
  • Upgrade to Full Version$2.99
5 purchases

Duality Pro

Subscriptions1
  • Duality Pro$12.991 Month
One-time4
  • 3D Dash$0.99
  • Extension features$149.99
  • Pro upgrade$149.99
Show 1 more
  • Lifetime Access2 variants$249.99

Questions

Is Marty's Magic Meter free?
Marty's Magic Meter is free to download, with in-app purchases available.
Is Duality Pro free?
Duality Pro is free to download, with in-app purchases available.
Which has better reviews, Marty's Magic Meter or Duality Pro?
Marty's Magic Meter is rated higher. Marty's Magic Meter averages 4.3 out of 5 from 8 ratings, while Duality Pro averages 4.1 from 18 ratings.
Do Marty's Magic Meter or Duality Pro have ads?
Neither Marty's Magic Meter nor Duality Pro shows ads.
Which is updated more often, Marty's Magic Meter or Duality Pro?
Marty's Magic Meter ships an update every 3 days, and Duality Pro monthly. Most recently, Marty's Magic Meter was updated on October 7, 2026 and Duality Pro on October 7, 2026.

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