Comparison

Benham's Disk 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

Benham's Disk

Features
Read full description

Let's play with mysterious Benham's disk. You can see various colors appearing from the black and white disk! Different colors will be shown if you change the spin speed and patterns. So let's try spinning by yourself. ### Spin the sample disks ### There are three sample disks. Those all have interesting visual effects. Some disks do not show colors in sunlight, but colors appear under the fluorescent lights. You'll get a sense of wonder. ### Make your own disks ### You can also edit the sample disks. If you long-press a disk, disk-pattern editor will open. Moreover, you can make your own disk from scratch by tapping the plus button. You've successfully made your own cool disks? So why not sharing them. You can export disk images to Photo Library and print them to make 'real' Benham's disks. ### Spin photos from Photo Library ### Next, let's import your photo snaps from the Photo Library. How about taking a picture of umbrella, plate or your face? Spinning them in Benham's disk brings you lots of fun! You can change scaling and central point to see different effects. Now the creation of Benham's disk made easy!

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

Benham's Disk4 screens
Duality Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Benham's Disk at none against Duality Pro's 6. Benham's Disk also leads on iOS requirement (8.0 vs 12.0). Duality Pro's advantage is update cadence (monthly vs every 4 months). On price, ads 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. Duality Pro sells 5 in-app purchases, starting at $12.99 per month. Benham's Disk asks for nothing beyond the download.

UpkeepUpdate frequency

Benham's Disk ships an update every 4 months, Duality Pro monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Benham's Disk versus Duality Pro: the parameters behind the verdict, then further details
ParameterBenham's DiskDuality Pro
PriceFreeFree
Rating—4.1 (19 ratings) — better
Positive reviews—55.6% of reviews
Number of ratings—19 — better
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size13 MB360 MB
Age rating4+4+
DeveloperSoftUmeYa, LLC.Yaniv Levy

In-app purchases

None

Benham's Disk

No in-app purchases

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 Benham's Disk free?
Benham's Disk is free to download, with no in-app purchases.
Is Duality Pro free?
Duality Pro is free to download, with in-app purchases available.
Do Benham's Disk or Duality Pro have ads?
Neither Benham's Disk nor Duality Pro shows ads.
Which is updated more often, Benham's Disk or Duality Pro?
Benham's Disk ships an update every 4 months, and Duality Pro monthly. Most recently, Benham's Disk was updated on October 26, 2026 and Duality Pro on October 24, 2026.

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