# Detect It! — The Real Fake Geiger Counter > Simulated Geiger counter app with controllable readout for pranks and sound effects. (iPhone/iPad app by Bryan Wu.) - Source: https://appshunter.io/ios/app/detect-it/id1109780171 (this page in markdown: same URL + `.md`) - Developer: [Bryan Wu](https://appshunter.io/developer/1002993092) - Category: Entertainment, Music - Price: $0.99 - Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 8 MB - Languages: English - Released: 2016-05-04 - Data updated: 2026-06-11 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/detect-it/id1109780171/reviews.md ## What is Detect It!? 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: On phones with 3D Touch (6s, 7, 8, X, XS), the readout is controlled by measuring the PRESSURE on your screen. On all other phones (iPhone 11 and newer, iPhone 6 and older), the readout is controlled by the SIZE (DIAMETER) of your fingerprint on the screen. 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. Can also be used as a 'musical' instrument or for sound effects. Have fun! ## Key features - Simulated Geiger counter - Pressure-sensitive control (3D Touch) - Fingerprint size control - Customizable labels - Realistic sound effects - Works on various iPhone models ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/detect-it/id1109780171/reviews.md ### 5/5 — Fun little App, Great support! *2019-05-03* 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! ### 5/5 — best prank app out there *2016-05-25* 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. ## Frequently asked questions about Detect It! ### What is Detect It! used for? Detect It! is a simulated Geiger counter app designed for entertainment and pranks. Users can control the readout and sound effects to trick friends or create custom soundscapes. ### How do I control the readout in Detect It!? On iPhones with 3D Touch, the readout is controlled by the pressure applied to the screen. On other iPhones, the size of your fingerprint on the screen determines the readout. ### Can I customize the labels in Detect It!? Yes, you can edit the labels to anything you like, or leave them blank for maximum versatility in your pranks or sound effect creations. ### Does Detect It! work offline? The app description does not specify offline functionality, but as a simulation and prank app, it is likely designed to function without an internet connection. ### What devices does Detect It! support? Detect It! supports both old and new iPhones and iPods, including models with and without 3D Touch. ### How often is Detect It! updated? The latest version is 1.0.7, and it was last updated on May 15, 2026. This indicates infrequent updates. ### What is the age rating for Detect It!? Detect It! has an age rating of 4+, making it suitable for a wide range of users. ### What do users like about Detect It!? With a 5.0-star rating from 3 reviews, users likely appreciate the app's novelty, the ability to control the simulation, and its potential for humorous pranks. ## Version history (last 5 releases) ### 1.0.7 — 2026-05-15 No changes. Just confirmed it works on newest phones. ### 1.0.6 — 2021-02-19 Confirmed it works on edge-to-edge devices. ### 1.0.5 — 2018-01-19 - Fixed audio! It clicks nice and fast again, just like it used to. - Added preview video to app store listing ### 1.0.4 — 2018-01-18 - Fixed audio! It clicks nice and fast again, just like it used to. ### 1.0.3 — 2017-11-06 - iOS 11 compatible - Changed name so it’s easier to find in the App Store - Instructions for the “Edit” button ## Apps similar to Detect It! | App | Rating | Price | Category | | --- | --- | --- | --- | | [Ghost Detector Real Hunting](https://appshunter.io/ios/app/ghost-detector-real-hunting/id6736600168) | 4.4 (121) | Free | Entertainment | | [AI Lie Detector: Truth Test °](https://appshunter.io/ios/app/ai-lie-detector-truth-test/id6502961125) | 4.3 (44) | Free | Entertainment | | [FestAI: Ghost Detector App](https://appshunter.io/ios/app/festai-ghost-detector-app/id6468875858) | 4.4 (69) | Free | Entertainment | | [Truth & Lie Detector Test](https://appshunter.io/ios/app/truth-and-lie-detector-test/id6458306548) | 1.5 (4) | Free | Entertainment | | [Lie Detector & Love Test Prank](https://appshunter.io/ios/app/lie-detector-and-love-test-prank/id6456408938) | 4.2 (17) | Free | Entertainment | | [Lie detector: test](https://appshunter.io/ios/app/lie-detector-test/id6445990039) | 4.8 (4) | Free | Entertainment | ## More apps by Bryan Wu - [Signal Light](https://appshunter.io/ios/app/signal-light/id1031126579) - [Cross It Off – Shopping & Todo](https://appshunter.io/ios/app/cross-it-off-shopping-and-todo/id1114967534) - [Everyone Emoji Keyboard](https://appshunter.io/ios/app/everyone-emoji-keyboard/id1214142875) - [Music Notation Stickers!](https://appshunter.io/ios/app/music-notation-stickers/id1216360339) - [Ice Cream Cone Stickers!](https://appshunter.io/ios/app/ice-cream-cone-stickers/id1244245048) All apps by Bryan Wu: https://appshunter.io/developer/1002993092 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*