# EMF Hunter > Electromagnetic field detector using phone's internal compass for entertainment. (iPhone/iPad app by Derek Hoffmeister.) - Source: https://appshunter.io/ios/app/emf-hunter/id527767947 (this page in markdown: same URL + `.md`) - Developer: [Derek Hoffmeister](https://appshunter.io/developer/496135095) - Category: Utilities, Entertainment - Price: Free - Rating: 4.00/5 from 10 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 6 MB - Languages: American English - Released: 2012-05-24 - Data updated: 2026-06-03 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/emf-hunter/id527767947/reviews.md ## What is EMF Hunter? ------------- EMF Hunter ------------- This app is intended for entertainment purposes only. This app supports devices with an internal compass. This includes iPhone 3GS and newer iPhone devices. ------------- Description ------------- User your phone as an EMF (electromagnetic field) detector. This app uses the power of your phones internal compass to detect magnetic and electric fluctuations in the environment around you. This is perfect for people looking to detect magnetic fields: teachers, students, technophiles, and even Ghost hunters! This app is not intended to be a scientific instrument, and it's readings are subject to external conditions and the accuracy of the device's internal compass. ------------- Features ------------- * Detects the strength of magnetic fields in all three dimensions * Easy to read meter lets you gauge with a simple look the strength of fields in different directions * Light up LED icons display showing field strength, the more LED icons that light up, the more force there is * Graph view shows the changing values of the field from all three dimensions * Line Graph * Bar Graph * Polar Graph * Pie Graph * Particle Mode - the more magnetic force the more particles * Ability to start and pause detection * Magnetic force is calculated in microteslas ## Key features - Detects magnetic field strength in three dimensions - Easy-to-read meter with LED indicators - Multiple graph views (line, bar, polar, pie) - Particle mode visualizes magnetic force - Start and pause detection functionality - Displays force in microteslas ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/emf-hunter/id527767947/reviews.md ### 5/5 — Really good and think it’s legit *2021-08-17* It works near magnets so that’s cool ### 5/5 — Probably legit *2019-10-25* I got this app and went around to things that radiate emf and it was consistently spiking every time I brought it near my laptop or TV. So, I think it's pretty legit and would like to take it ghost hunting sometime. ### 5/5 — Awesome app *2014-02-21* This app is just what I was looking for! I was able to find 2 ghosts with this and now feel much safer in my house! This is very nice app to have and you never know when you'll use it ## Frequently asked questions about EMF Hunter ### What is EMF Hunter used for? EMF Hunter is designed for entertainment purposes, allowing users to detect magnetic and electric fluctuations in their environment using their phone's internal compass. It's perfect for educational exploration or for those interested in paranormal investigations. ### Does EMF Hunter have ads? Yes, EMF Hunter contains advertisements. As a free application, it relies on ads to support its development and continued availability to users. ### What devices support EMF Hunter? EMF Hunter supports iPhone devices from the iPhone 3GS onwards, as well as iPod Touch devices. It requires a device with an internal compass for functionality. ### How accurate are EMF Hunter's readings? EMF Hunter is not a scientific instrument, and its readings are subject to external conditions and the accuracy of the device's internal compass. It provides an approximation for entertainment and educational use. ### What is the age rating for EMF Hunter? EMF Hunter has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content. ### How often is EMF Hunter updated? The latest version of EMF Hunter, 1.7, was released on November 24, 2022. While specific update frequency isn't detailed, this indicates it receives periodic maintenance and updates. ### What are the different graph views in EMF Hunter? EMF Hunter offers several graph views to visualize field strength, including Line Graph, Bar Graph, Polar Graph, and Pie Graph. These help users understand changing magnetic field values across different dimensions. ### Can I pause detection in EMF Hunter? Yes, EMF Hunter provides the ability to start and pause detection. This allows users to control when measurements are taken and reviewed. ## Version history (last 5 releases) ### 1.7 — 2022-11-24 - Latest iOS support - Bug fixes ### 1.6 — 2020-12-01 iOS 14 support ### 1.5 — 2020-04-06 Bug fixes ### 1.4 — 2020-02-24 Updated for iPhone X/XS/11 ### 1.3 — 2016-07-08 *Updated for iPhone 6/6+ ## Apps similar to EMF Hunter | App | Rating | Price | Category | | --- | --- | --- | --- | | [EMF Detector+](https://appshunter.io/ios/app/emf-detector-plus/id6657985916) | — | Free | Utilities | | [Radex: 5G EMF Detector](https://appshunter.io/ios/app/radex-5g-emf-detector/id6738017621) | 2.3 (3) | Free | Utilities | | [magnetoboy](https://appshunter.io/ios/app/magnetoboy/id6444351760) | 4.8 (5) | Free | Utilities | | [Microwave Leak Detector](https://appshunter.io/ios/app/microwave-leak-detector/id1163814470) | 4.5 (11) | Free | Utilities | | [InterSpec Radiation Analysis](https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767) | 4.2 (10) | Free | Utilities | | [Sensor Technology Engineering](https://appshunter.io/ios/app/sensor-technology-engineering/id1627959712) | — | Free | Utilities | ## More apps by Derek Hoffmeister - [GameRE](https://appshunter.io/ios/app/gamere/id496135092) - [Disc Golf Score Keeper](https://appshunter.io/ios/app/disc-golf-score-keeper/id722304189) - [Sheepshead](https://appshunter.io/ios/app/sheepshead/id878817235) All apps by Derek Hoffmeister: https://appshunter.io/developer/496135095 ## Related topics [derek hoffmeister](https://appshunter.io/ios/topics/derek-hoffmeister) --- *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 2026-06-03.*