Detect It‪!‬ 4+

The Real Fake Geiger Counter

Bryan Wu

Designed for iPhone

    • 5.0 • 3 Ratings
    • $0.99

iPhone Screenshots


Trick your friends with a ‘detector’ that you secretly control.

Press the screen harder to control the readout and realistic 'geiger-counter' sound.

Use it on your friends to measure their style, intelligence, and wit.
Wave it around when you ‘detect' BS, bros, or sheer brilliance.
Detect engrams, elronds, megafaunas, and more.

It’s amazing what your phone can 'detect'!

Works on old and new iPhones, even those without 3D-touch!

How it works:

The readout is controlled by measuring the pressure on your 3D Touch screen (6s+) or the size of your fingerprint (iPhone 6 and below, and iPhone 11 and newer)

TIP for the fingerprint-size-sensing phones: lay the length of your finger against the screen to get up to and above 100%!

Edit the labels to whatever you like, or leave them blank for versatility.

Have fun!

What’s New

Version 1.0.6

Confirmed it works on edge-to-edge devices.

Ratings and Reviews

5.0 out of 5
3 Ratings

3 Ratings

JASguy2006 ,

Fun little App, Great support!

I originally purchased this app and was having difficulty getting it to work as advertised. I contacted the developer, who responded by email within 24 hours, and who followed up the next day when I had not been able to respond to him. I eventually was able to get the app to work and it is a fun little thing to play with. I recommend it! And I am very appreciative of the excellent support offered!

just me and nobody else! ,

best prank app out there

This is a silly and fun little app. Fool your friends, impress your lovers, make fun of the gullible. Best $1.99 I ever spent.

App Privacy

The developer, Bryan Wu, 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, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer


You Might Also Like