# Magnetic Detector, Stud Finder — Metal, EMF & Gauss Meter

> Detects magnetic and EMF fields using your device's magnetometer. (iPhone/iPad app by Jose Bello.)

- Source: https://appshunter.io/ios/app/magnetic-detector-stud-finder/id1403751803 (this page in markdown: same URL + `.md`)
- Developer: [Jose Bello](https://appshunter.io/developer/1013437387)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 443 App Store ratings · 356 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 30 MB
- Languages: American English
- Released: 2018-08-01
- Data updated: 2026-10-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/magnetic-detector-stud-finder/id1403751803/reviews.md

## What is Magnetic Detector, Stud Finder?

Turn your iPhone into a powerful Magnetic Detector and Metal Detector. Detect nearby magnetic fields, find hidden metal screws and nails, scan walls for magnetic objects, and measure EMF magnetic field activity in real time using your device's built-in magnetometer.

Whether you're searching for metal fasteners behind walls, exploring magnetic sources, or measuring magnetic field strength, Magnetic Detector makes it easy to visualize changes in your surroundings.

Magnetic Detector is handy for comparing readings around appliances, walls, and everyday objects. When used as a Metal Detector, it can help you spot nearby iron or steel items by showing changes in the magnetic field.

FIND HIDDEN METAL OBJECTS

Use your iPhone as a magnetic metal detector to help locate ferromagnetic objects such as iron and steel screws, nails, certain pipes, metal fittings, and other magnetic materials.
Move your device slowly along walls or plasterboard to detect magnetic disturbances. Metal fasteners may help indicate the location of hidden wall studs.

DETECT & MEASURE MAGNETIC FIELDS

Transform your device into a real-time EMF magnetic field meter. Monitor magnetic field intensity with an intuitive digital gauge and observe how measurements change as you approach magnetic objects.

The app displays magnetic field strength in:
- μT (microtesla)
- mG (milligauss)

Earth's magnetic field is typically 25–65 μT. 1 μT equals 10 mG.

POWERFUL DETECTION FEATURES

- Real-time magnetic field and EMF magnetic field measurements.
- Magnetic metal detection using your device's built-in magnetometer.
- Interactive gauge displaying magnetic field intensity.
- Audible warning when the magnetic field exceeds the configured threshold.
- Automatic recording of measurements and timestamps.
- Three-axis magnetic field readings (Bx, By, Bz).
- 3D visualization of magnetic field measurements.
- Room scanning to explore magnetic hotspots.
- Support for microtesla and milligauss measurements.

USE YOUR IPHONE AS A STUD FINDER

Searching for hidden screws or nails in a wall? Magnetic Detector can help identify nearby ferromagnetic fasteners that may indicate the position of wooden studs or metal structures.

IDEAL FOR DIY, EDUCATION & EXPLORATION

Magnetic Detector can be useful for:

- DIY enthusiasts and handymen exploring walls for magnetic fasteners.
- Students conducting physics experiments and school projects.
- Teachers demonstrating magnetic field behavior.
- Engineers and technology enthusiasts studying magnetic measurements.
- Anyone curious about magnetic activity around electronic devices, speakers, magnets, and other objects.

HOW DOES IT WORK?

The app uses the magnetometer integrated into your iPhone to measure nearby magnetic field strength.

Ferromagnetic objects can produce or disturb local magnetic fields. As you move your device closer to these objects, the magnetic field readings may change, helping you identify potential magnetic sources.

Tip: Shake your device to help recalibrate the magnetic sensor. Keep your phone away from magnetic accessories that could interfere with measurements.

IMPORTANT INFORMATION

Magnetic Detector is designed for personal, educational, and entertainment purposes. It is not a replacement for professional metal detectors, stud finders, electrical wire detectors, or safety equipment.

Detection is primarily limited to nearby magnetic and ferromagnetic materials. The app cannot directly detect wooden studs, non-magnetic metals such as copper or aluminum, or reliably identify electrical wiring. Always verify wall conditions with appropriate professional tools before drilling.

Accuracy depends on your device, distance, and magnetic interference.
If you experience any issues or have suggestions, please contact us and include your device model and iOS version.

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Detects magnetic and EMF fields
- Locates metal objects, wires, and pipes
- Finds hidden wood studs behind walls
- Real-time magnetic field intensity readings (μT & mG)
- Active detection beep alerts
- Automatic storage of time and measurements

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Full Access | $4.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Full Access | $12.99 | one-time |
| Unlock all - Premium & Warning Beep | $4.99 | one-time |
| Remove Ads - Magnetic Detector | $2.99 | one-time |


## What do users think of Magnetic Detector, Stud Finder?

Reviews of Magnetic Detector, Stud Finder are mostly positive: the Utilities app is rated 4.6/5 from 443 App Store ratings. What users like most: accurate magnetic detection, easy to use and intuitive. Top complaints: ads can be intrusive in free version, concerns about privacy and data collection. Summarized from real user reviews.

**Pros**

- ⭐ Accurate magnetic detection
- 👍 Easy to use and intuitive
- 🔍 Helpful for finding hidden metal objects
- 🔧 Useful for troubleshooting mechanical issues (e.g., magnetized watches)

**Cons**

- 💰 Ads can be intrusive in free version
- 🔒 Concerns about privacy and data collection
- 🔋 Potential impact on device battery life

**Commonly reported bugs**

- Readings sometimes inconsistent or stop at certain thresholds
- Compatibility issues with some devices

**Most requested features**

- Add support for measuring electric fields
- Improve accuracy and sensitivity
- Provide more detailed readings and analysis

## Is Magnetic Detector, Stud Finder safe?

Magnetic Detector, Stud Finder appears safe based on user ratings. The AppsHunter Safety Score for Magnetic Detector, Stud Finder is 91 out of 100. This assessment is based on 443 user ratings, with an App Store average of 4.6 out of 5. Of 443 App Store ratings, 91.9% point to a safe experience, 2.5% suggest some concerns, and 5.6% point to a risky experience.

## Is Magnetic Detector, Stud Finder legit?

Magnetic Detector, Stud Finder appears to be a legitimate app. The AppsHunter Legitimacy Score for Magnetic Detector, Stud Finder is 95 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 356)

All indexed reviews: https://appshunter.io/ios/app/magnetic-detector-stud-finder/id1403751803/reviews.md

### 5/5 — Remarkable

*2026-10-25, version 5.0*

Love it

### 5/5 — More useful than you think

*2026-10-21, version 5.0*

Looking for nails in a wall and magnetic hotspots that can give you a headache, this app looks for those things. I also found that it finds magnetic anomalies. I found one of these at work when I was looking for bugs and instead found a bizarre reading in the middle of our works canteen. Nobody knows what it is. Still, this app found it.

### 5/5 — Amazing emf and magnetic detector

*2026-10-14, version 5.0*

I use this app very often. It helps my to find a lot of magnetic sources. It’s very accurate. This magnetic detector is simply awesome. Thanks

### 5/5 — Good power magnetic finder

*2026-10-03, version 5.0*

Works well for me

### 5/5 — Great Tool

*2026-09-27, version 5.0*

Works as advertised.

### 1/5 — 30 second trial before you have to pay.

*2026-09-22*

Only 30 second trial to try the app - not even long enough to figure out how the app works or how well, before you have to pay $18.  No thanks.

**Developer response:** Thanks for your feedback. Magnetic Detector has a 4.7 average rating, ranks highly for relevant search terms, and has received strong reviews from users.
The 30-second trial is intended to give you a quick opportunity to see how the detector responds and how the app works. Developing and refining the app has taken well over 1,000 hours, including several additional features beyond the main detector.
For users who want more time to explore everything, there is an entry subscription option starting at $4.99.
We believe this offers a fair balance between letting users try the app and supporting its continued development.
Best regards.

### 5/5 — Great app for testing without having to spend the money on devices!

*2026-09-10*

Awesome easy to use and straight to the point. Seems very accurate and I’m grateful I downloaded it.

**Developer response:** Thank you so much for your kind review! We’re really happy to hear that you find the app easy to use, accurate, and straightforward. We truly appreciate your support and are glad you downloaded it!

### 5/5 — Haven’t had time to try it yet before I was prompted to rate it

*2026-09-10, version 4.9*

Seems to work so far, but I don’t know yet

### 5/5 — So far it’s all good

*2026-09-10*

So far so good, just recently downloaded and haven’t had much time to poke it yet. I did find the in app information section to be thorough from what I’ve read so far.

**Developer response:** Thank you for your review! We’re glad your first experience with the app has been positive and that you found the information section helpful and thorough. We hope you enjoy exploring everything the app has to offer!

### 5/5 — Measur

*2026-09-07, version 4.9*

Cool

## Frequently asked questions about Magnetic Detector, Stud Finder

### What does the EMF & Magnetic Detector app do?

This app uses your device's built-in magnetometer to detect and measure magnetic and electromagnetic fields. It can help you locate ferromagnetic metal objects like wires, pipes, coins, and keys, as well as discover hidden wood studs behind walls or plasterboard.

### How does the app detect metal and wires?

The app leverages your device's magnetic sensor to quantify the intensity of the magnetic field. When placed near ferromagnetic materials, these fields cause a disturbance, leading to an increase in the readings displayed by the app. An active detection beep alerts you when a certain limit is reached.

### Is this app a replacement for professional metal detector devices?

No, this app is intended for private and entertainment purposes only. While it can detect magnetic fields and metal objects, it is not a substitute for professional-grade metal detector devices.

### What are the main features of the EMF & Magnetic Detector app?

Key features include active detection beeps, automatic storage of time and measurements, and a gauge displaying magnetic field magnitude in both microteslas (μT) and milliGauss (mG). It also allows for the discovery of hidden wood studs behind walls.

### Who can benefit from using this app?

The app is useful for construction workers and handymen looking to find hidden wires in walls, students for educational projects and experiments, and anyone interested in exploring magnetic fields. Scientists, teachers, and engineers also use detector meters for similar purposes.

## Version history (last 5 releases)

### 5.1 — 2026-10-28

Small improvements for a smoother, more refined detection experience. Explore magnetic activity around you with Room Scan and visualize magnetic hotspots using an intuitive heatmap.

### 5.0 — 2026-09-10

Improved detection accuracy with enhanced sensor processing. Room Scan now lets you visualize magnetic activity across your space with a detailed heatmap.

### 4.9 — 2026-03-12

Improved detection accuracy with updated sensor-processing algorithms. Room Scan creates a stunning magnetic heatmap of your space.

### 4.8 — 2026-02-24

Improved detection accuracy with updated sensor-processing algorithms. Room Scan creates a stunning magnetic heatmap of your space.

### 4.7 — 2026-02-06

Improved detection accuracy with updated sensor-processing algorithms. Room Scan creates a stunning magnetic heatmap of your space.

## Apps similar to Magnetic Detector, Stud Finder

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Magnetized Wristwatch Checker](https://appshunter.io/ios/app/magnetized-wristwatch-checker/id6478119877) | 4.6 (21) | Free | Utilities |
| [Magnetometer ∞](https://appshunter.io/ios/app/magnetometer/id6753061844) | 4.4 (59) | Free | Utilities |
| [Smart Metal Detector & EMF](https://appshunter.io/ios/app/smart-metal-detector-and-emf/id1114708518) | 4.4 (270) | Free | Utilities |
| [EMF Detector-Radiation Reader](https://appshunter.io/ios/app/emf-detector-radiation-reader/id6572300713) | 4.4 (339) | Free | Utilities |
| [Metal Detector - Stud Finder](https://appshunter.io/ios/app/metal-detector-stud-finder/id6444347206) | 4.6 (414) | Free | Utilities |
| [Metal Detector Pro+](https://appshunter.io/ios/app/metal-detector-pro-plus/id6478103915) | 4.6 (39) | Free | Utilities |

## More apps by Jose Bello

- [Leave Your Hat On - Change Your Look In Seconds](https://appshunter.io/ios/app/leave-your-hat-on-change-your-look-in-seconds/id939410929)
- [Dog Breeds Trivia Quizzes](https://appshunter.io/ios/app/dog-breeds-trivia-quizzes/id1013437388)
- [Scary Paranormal Camera](https://appshunter.io/ios/app/scary-paranormal-camera/id1023459171)
- [Electromagnetic EMF Detector](https://appshunter.io/ios/app/electromagnetic-emf-detector/id1031336728)
- [Metal Detector PRO - Meter](https://appshunter.io/ios/app/metal-detector-pro-meter/id1031339281)
- [Habit Time Tracker And Control](https://appshunter.io/ios/app/habit-time-tracker-and-control/id1047664910)

All apps by Jose Bello: https://appshunter.io/developer/1013437387

## Related topics

[gauss meter](https://appshunter.io/ios/topics/gauss-meter) · [magnetic field detector](https://appshunter.io/ios/topics/magnetic-field-detector) · [magnetic detector](https://appshunter.io/ios/topics/magnetic-detector) · [magnetic field](https://appshunter.io/ios/topics/magnetic-field) · [magnetism](https://appshunter.io/ios/topics/magnetism) · [magnetic interference](https://appshunter.io/ios/topics/magnetic-interference) · [jose bello](https://appshunter.io/ios/topics/jose-bello) · [magnetometer free](https://appshunter.io/ios/topics/magnetometer-free) · [watch magnetism](https://appshunter.io/ios/topics/watch-magnetism) · [free raw magnetometer](https://appshunter.io/ios/topics/free-raw-magnetometer) · [magnetic field scanner](https://appshunter.io/ios/topics/magnetic-field-scanner) · [lepsi](https://appshunter.io/ios/topics/lepsi) · [magnetometer](https://appshunter.io/ios/topics/magnetometer) · [magnetic tool](https://appshunter.io/ios/topics/magnetic-tool) · [lepsi magnetic](https://appshunter.io/ios/topics/lepsi-magnetic) · [microwave detector](https://appshunter.io/ios/topics/microwave-detector) · [emf detector free](https://appshunter.io/ios/topics/emf-detector-free) · [magnetic pole detector](https://appshunter.io/ios/topics/magnetic-pole-detector) · [magnetic detector by aexol](https://appshunter.io/ios/topics/magnetic-detector-by-aexol) · [magnetic sensor](https://appshunter.io/ios/topics/magnetic-sensor)

---

*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 2026-10-29.*