iPhone Screenshots


The Jerx App is a utility magic app that can be used to create a myriad of different effects, including:

- A Cute Memory Loss: Cause a spectator to forget something she just saw.

- Pee Hill Pot: Induce a mild, momentary loss of cognitive ability. Just by touching your spectator's head you reduce their reading ability to that of a 6-year-old.

- ScribBold: You read a spectator's mind, or one spectator reads another's mind to determine a thought of word or concept that is never written down or spoken aloud.

- Chocolate/Vanilla Twist: A perfect 50/50 prediction.

- Digital Linger: Create dual-reality effects for one person.

- I Know What You Need: Apparently implant a thought in a spectator's mind (requires The Jerx, Volume One book).

What’s New

Version 2.0.2

UI updates for modern phones.

App Privacy

The developer, Marc Kerstein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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