# Spy Detector - Bug and Telephone Detector > Detects electronic devices using magnetometer and electromagnetic field variations. (iPhone/iPad app by Matteo Tagliafico.) - Source: https://appshunter.io/ios/app/spy-detector-bug-and-telephone-detector/id971245349 (this page in markdown: same URL + `.md`) - Developer: [Matteo Tagliafico](https://appshunter.io/developer/650871737) - Category: Entertainment, Utilities - Price: Free - Age rating: 4+ - Requires: iOS 7.1 · 7 MB - Languages: English, French, German, Italian, Portuguese, Spanish - Released: 2015-03-05 - Data updated: 2026-08-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/spy-detector-bug-and-telephone-detector/id971245349/reviews.md ## What is Spy Detector? ****** SPECIAL OFFER ONLY 0.99 $****** > Use it to impress your friends. > Passing it his clothes in fact detect cell phones and other electronic devices.  > OPERATION: The operation is based on the magnetometer inside the iPhone. The magnetometer measures the electromagnetic field surrounding the device. If there are bugs, mobile phones, hidden cameras, microphones or electronic devices the electromagnetic field is changed. Task of this application is to detect these variations and, through our special algorithm, directing the user to the device to be flush with simple instructions on the screen when you are closer to the object. The application identifies devices even when switched off. What aspects? Impress everyone with "Spy Detector"! ## Key features - Detects electronic devices - Uses magnetometer - Measures electromagnetic fields - Guides user to device - Identifies devices when off ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/spy-detector-bug-and-telephone-detector/id971245349/reviews.md ### 1/5 — Horrible *2019-03-25, version 1.0.1* What a joke. Does not work at all ### 1/5 — No good *2018-07-20, version 1.0.1* No instructions when it says Found. Save your money, it’s not worth it. ### 5/5 — GPS found *2018-06-25, version 1.0.1* I could not believe how quick this app was in helping me find a GPS tracker that was placed on my vehicle by a complete low life. Extremely accurate. I have already recommended this app to others. Extremely satisfied. Thank you. ### 1/5 — If I could give it zero stars... *2017-10-18, version 1.0.1* It simply doesn't work. Great way to collect money from people without providing an app that works. 😡😡😡 ### 1/5 — Scam *2016-12-02, version 1.0.1* Do not purchase this. It's garbage ### 1/5 — BS *2015-11-28, version 1.0.1* Agreed, it stinks. It only detects your phone. Don't waste your money! ### 1/5 — Too sensitive not specific *2015-11-28, version 1.0.1* Now the app is really sensitive but not specific... ### 1/5 — BS *2015-10-05, version 1.0.1* It only detects things if the phone is touching them ### 1/5 — Does not find bugs *2015-05-20, version 1.0* Terrible app, does not work. ### 1/5 — Detects metals *2015-05-19, version 1.0* This devise would work in detecting a listening devise if it was made out of metal, but it will also pick up anything else metal. The app went off when I placed it against the vents on the ceiling. When I took it off there was nothing there, but it kept going off on the vent. I then tested it on a hammer and it went off again. So you wouldn't be able to tell if there was a listening devise/camera in something metal unless you took it apart. ## Frequently asked questions about Spy Detector ### How does Spy Detector work? Spy Detector operates by utilizing your device's built-in magnetometer to measure the surrounding electromagnetic field. It detects variations caused by electronic devices like phones, cameras, or microphones. ### Can Spy Detector find devices that are turned off? Yes, the application claims to identify devices even when they are switched off by detecting residual electromagnetic fields. ### What devices can Spy Detector detect? The app is designed to detect various electronic devices, including cell phones, hidden cameras, microphones, and other electronic equipment. ### Is Spy Detector available on Android? Based on the provided data, Spy Detector is supported on iPhone, iPad, and iPod devices. ### What is the age rating for Spy Detector? Spy Detector has an age rating of 4+, making it suitable for a wide range of users. ### How often is Spy Detector updated? The latest version of Spy Detector is 1.0.1, which was last updated on August 4, 2015. This indicates infrequent updates. ### What is the user rating for Spy Detector? Spy Detector has a user rating of 3.3 stars based on 36 ratings. ### Does Spy Detector have ads? The provided data does not specify if Spy Detector contains advertisements. However, it is listed as free. ## Version history (last 1 release) ### 1.0.1 — 2015-08-04 This app has been updated by Apple to display the Apple Watch app icon. - Improved performance - Bug Fix ## Apps similar to Spy Detector | App | Rating | Price | Category | | --- | --- | --- | --- | | [Lie Finder](https://appshunter.io/ios/app/lie-finder/id1459593709) | 2.6 (5) | Free | Entertainment | | [TreasureHunter3D](https://appshunter.io/ios/app/treasurehunter3d/id846719060) | 5.0 (1) | Free | Entertainment | | [NightVision-PRO](https://appshunter.io/ios/app/nightvision-pro/id887147894) | 3.7 (18) | Free | Entertainment | | [Watch Alarming Sounds Listener](https://appshunter.io/ios/app/watch-alarming-sounds-listener/id1587575463) | 1.0 (1) | $0.99 | Entertainment | | [iSpy Cameras (Ad Supported)](https://appshunter.io/ios/app/ispy-cameras-ad-supported/id757081283) | 4.6 (2,134) | Free | Entertainment | | [GoldHunter3D](https://appshunter.io/ios/app/goldhunter3d/id1477331561) | 3.4 (18) | Free | Entertainment | ## More apps by Matteo Tagliafico - [Find My Disco](https://appshunter.io/ios/app/find-my-disco/id896221515) - [Heart Rate Plus PRO](https://appshunter.io/ios/app/heart-rate-plus-pro/id995916752) - [Heart Rate Plus LITE](https://appshunter.io/ios/app/heart-rate-plus-lite/id1017018633) - [Localizza Numero di Telefono Fisso](https://appshunter.io/ios/app/localizza-numero-di-telefono-fisso/id1038379509) All apps by Matteo Tagliafico: https://appshunter.io/developer/650871737 --- *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 2026-08-25.*