# Magnetic Field Scanner — Detect Hidden Devices Nearby > Detects hidden electronic devices using magnetic field scanning with real-time alerts. (iPhone/iPad app by Hoang Le.) - Source: https://appshunter.io/ios/app/magnetic-field-scanner/id6747452469 (this page in markdown: same URL + `.md`) - Developer: [Hoang Le](https://appshunter.io/developer/1763197902) - Category: Utilities, Lifestyle - Price: Free with in-app purchases - Rating: 4.30/5 from 12 App Store ratings - Age rating: 4+ - Requires: iOS 17.6 · 5 MB - Languages: American English - Released: 2025-06-23 - Data updated: 2026-08-26 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/magnetic-field-scanner/id6747452469/reviews.md ## What is Magnetic Field Scanner? Worried someone might be spying on you? Instantly scan for hidden cameras, GPS trackers, and spy bugs using your phone. Spy Detector: EMF Scanner helps you protect your privacy with real-time magnetic field detection and instant alerts. HOW IT WORKS Your phone already has a magnetometer sensor built in — the same one used by compasses. Spy Detector transforms that sensor into a powerful EMF scanner, letting you identify unusual magnetic activity around you. Such magnetic spikes may occur near hidden electronic devices, metal objects, or power sources. FEATURES - Smart EMF scanner: Uses your device’s magnetometer to measure real-time magnetic field strength in microteslas (µT). - Hidden device alerts: Set sensitivity levels and get instant audio or vibration alerts when magnetic readings suddenly spike. - Live visual graph: Watch real-time waveforms of detected signals as you move your phone around. - Customizable sensitivity: Adjust thresholds for different environments (home, car, office, hotel). - 3-axis readouts: View detailed X, Y, Z sensor values for precise analysis. - Data history: Quickly review recent magnetic field changes to spot patterns. - Clean, discreet interface: Dark “matrix-style” visuals that look sleek and reduce glare in low light. - Offline & private: No internet, no tracking. All processing happens locally on your device. HOW TO USE 1. Open the app, tap on "SCAN" to start scanning. 2. Move your phone slowly around suspicious areas (mirrors, walls, smoke detectors, switches). 3. Watch for magnetic spikes on the live graph or listen for alerts. 4. Adjust sensitivity if needed to reduce false signals. 5. Use vibration mode for silent, discreet scanning. PERFECT FOR - Travelers checking hotel rooms or rentals - Anyone concerned about hidden recording devices - Security-minded professionals or journalists - Students and hobbyists exploring EMF fields - Everyday users who value privacy and peace of mind Protect your privacy today. Download Spy Detector: EMF Scanner and take control of your personal space. IMPORTANT NOTE Spy Detector: EMF Scanner uses your device’s built-in magnetometer to detect changes in magnetic fields. While strong spikes may indicate nearby electronic components, magnets, or metal structures, the app cannot guarantee detection of hidden cameras or GPS trackers in every case. Use it as a first-line privacy tool and combine it with visual inspection for best results. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Real-time magnetic field scanning - Hidden device alerts with adjustable sensitivity - Live visual graph of magnetic signals - 3-axis sensor readouts - Data history for pattern spotting - Offline and private operation ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | MagnetoScanner Month Pass | $5.99 | per month | | MagnetoScanner Year PAss | $29.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | MagnetoScanner Lifetime Access | $39.99 | one-time | ## Frequently asked questions about Magnetic Field Scanner ### What is Magnetic Field Scanner? Magnetic Field Scanner is a utility app that uses your phone's built-in magnetometer to detect changes in magnetic fields. These changes can sometimes indicate the presence of nearby electronic devices. ### How does Magnetic Field Scanner work? The app transforms your phone's magnetometer sensor into an EMF scanner. It measures real-time magnetic field strength and alerts you to unusual spikes that might be caused by hidden electronics. ### Can Magnetic Field Scanner guarantee detection of all hidden devices? No, the app cannot guarantee detection in every case. It's a first-line privacy tool and should be used alongside visual inspection for best results. Strong spikes can also occur near metal objects or power sources. ### Does Magnetic Field Scanner have ads? No, Magnetic Field Scanner does not contain advertisements. It is designed to provide a discreet and uninterrupted scanning experience. ### What devices is Magnetic Field Scanner compatible with? Magnetic Field Scanner is available for iPhone and iPad devices. ### What are the subscription options for Magnetic Field Scanner? Magnetic Field Scanner offers a MagnetoScanner Month Pass for $5.99 per month and a MagnetoScanner Year Pass for $29.99 per year. ### How often is Magnetic Field Scanner updated? The latest version, 8.0, was released on December 1, 2025, indicating regular updates to improve functionality and reliability. ### What is the age rating for Magnetic Field Scanner? Magnetic Field Scanner has an age rating of 4+, making it suitable for a wide range of users concerned about privacy. ## Version history (last 5 releases) ### 8.1 — 2026-08-15 Bug fixes and better performance. ### 8.0 — 2025-12-01 Updated UI Better performance ### 6.1 — 2025-09-20 UI/UX Update. Better performance. Bug fixes. ### 6.0 — 2025-07-31 Better performance. Bug fixes. ### 1.0 — 2025-06-24 No release notes. ## Apps similar to Magnetic Field Scanner | App | Rating | Price | Category | | --- | --- | --- | --- | | [EMF Tracker](https://appshunter.io/ios/app/emf-tracker/id6749901198) | — | Free | Utilities | | [Magnetometer & Network Scan](https://appshunter.io/ios/app/magnetometer-and-network-scan/id6737510459) | — | Free | Utilities | | [Magnetometer ∞](https://appshunter.io/ios/app/magnetometer/id6753061844) | 4.3 (48) | Free | Utilities | | [The Metal Detector](https://appshunter.io/ios/app/the-metal-detector/id1400084129) | 4.0 (7) | Free | Utilities | | [Earth Science Systems Surveyor](https://appshunter.io/ios/app/earth-science-systems-surveyor/id6474365145) | — | Free | Utilities | | [EMF Meter – Paranormal](https://appshunter.io/ios/app/emf-meter-paranormal/id6751793797) | 4.7 (12) | Free | Utilities | ## More apps by Hoang Le - [Spirit Box: Ghost Whispers](https://appshunter.io/ios/app/spirit-box-ghost-whispers/id6740446796) - [Spirit Box: Ghost SLS](https://appshunter.io/ios/app/spirit-box-ghost-sls/id6742877134) - [Color Picker: Eye Dropper Cam](https://appshunter.io/ios/app/color-picker-eye-dropper-cam/id6744268026) - [Math Game: Brain Boost](https://appshunter.io/ios/app/math-game-brain-boost/id6749262406) - [Saxophone Fingering Tuner](https://appshunter.io/ios/app/saxophone-fingering-tuner/id6752494241) All apps by Hoang Le: https://appshunter.io/developer/1763197902 ## Related topics [magnetic field scanner](https://appshunter.io/ios/topics/magnetic-field-scanner) · [magnetic field detector](https://appshunter.io/ios/topics/magnetic-field-detector) · [magnetic field](https://appshunter.io/ios/topics/magnetic-field) --- *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 2026-08-26.*