ISO - Kerstein & Qualter

ISO - Kerstein & Qualter Icon

Company: Marc Kerstein

App Genre: Entertainment

Ratings: 4.70

Version: 1.0.1

Updated 02/02/23

Downloads: 360

ISO - Kerstein & Qualter is an entertainment application developed by Marc Kerstein and available for download on the iOS App Store and Android Play Store. The app is compatible with iOS 15.5+ and Android 4.4+. It requires 18MB of free space for IPA (iOS) or APK (Android) installation.

Iso - trailer

Digital meets analogue

What is ISO?

“Marc's apps are unbelievable.”
—David Blaine

ISO is a digital solution which enables many analogue effects.

ISO lets you perform miracles using a borrowed phone.

*** You can use ISO for:
- Bill to impossible location
- A book test with ANY printed text (a restaurant menu, a borrowed book, a magazine, etc)
- Playing card forces
- Stacked deck effects
...and so much more!

For example... imagine:

- You ask your spectator to borrow a bill, which they place on the table in front of them.
- Using THEIR phone, you openly take a photo of the bill to verify later.
- You crumple the bill into a ball in your hand, and have your spectator hold your wrist.
- You slowly open your hand to show that the bill has now VANISHED!
- The spectator then checks under their bag to find the bill!
- They check the serial number… it MATCHES the photo! It’s the SAME bill!

* Your phone is NEVER in play!
ISO only uses the spectator’s phone during the effect, meaning your phone is never seen.

* Carefully justified in every way
All stages of ISO’s possible effects and routines have been carefully thought through and are justified at each step.

* Works in ANY language
ISO is performable in any language. No text is visible during the effect, and so ISO can be used in any country or region.

* Multiple pairing methods
Includes an adaptive peek screen, plus optional printable pairing stickers and NFC tag support.

* Fully customisable
The many included settings, features and modes available let you use ISO for many different effects.

* WikiTest pairing integration
Performing ISO can leave your spectator paired and ready to perform WikiTest at the conclusion of ISO’s effect.

* VERY easy to perform
* NO accomplice used
* NO memory work needed

ISO is for entertainment purposes only.
Please get in touch to discuss video/audio/TV/internet broadcasting of any description of this effect.

Need help? Join our ISO forum to ask questions, get help, and discuss the app with other users from around the world. If you would like to cancel your subscription or delete your account, please visit our ISO Cancel & Delete page for further instructions.

Download ISO

ISO can also be downloaded from the following language pages:
Germany, Spain, and France


Download ISO for PC (Windows/Mac OS)

To install the ISO app on your PC (Windows 10/8/7), follow our guide on using Bluestacks to run APK files on your computer. If you're having trouble downloading ISO, please share your issues in our forums. Our friendly community is always happy to help you install or download.

If you enjoyed this app, check out our list of the best ISO alternatives in 2024. And don't forget to share it with your friends too!

Featured Reviews


I have several of his apps and oh boy they are GREAT!!!!

Appsolutely Brilliant

With ISO, Marc has created another reliable and versatile magic app that allows for mind blowing performances using a borrowed phone of a spectator. (Nothing is installed on their phone). The app runs flawlessly; video and written instructions are provided within the app. As always, Marc continually updates his apps, keeping them working as software updates and adding incredible features. Excellent support and customer service.

A must have

Marc Kerstein is by far one of the best ap developers for magic hands down. His aps personally have always been my go to when I’m not carrying anything. ISO is amazing and one of Marc’s top aps in my opinion. Easy to maneuver and the tutorials are very easy to watch with many ideas and effects you can do. This is a must have for any magician


Powerful concept flawlessly executed.

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