# Magnetometer vs Stud + Metal Scanner

The clearest difference is price: Stud + Metal Scanner at Free against Magnetometer's $1.99. Magnetometer's advantage is update cadence (weekly vs every 9 months) and iOS requirement (13.0 vs 15.6). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Stud + Metal Scanner is free to download; Magnetometer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Magnetometer against 5.0 for Stud + Metal Scanner. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Magnetometer ships an update weekly, Stud + Metal Scanner every 9 months. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Magnetometer | Stud + Metal Scanner |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/magnetometer-emf-detector/id6752918170/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/stud-plus-metal-scanner/id6757409552/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 months |
| Monetization | Paid | **Free** |
| Size | 23 MB | 5 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SootheTrail Solutions LLC](https://appshunter.io/developer/1815309839) | [PRADEEP CHENDURAN BALASUNDARAM](https://appshunter.io/developer/1866726591) |

## What reviewers say

### Magnetometer

[App page](https://appshunter.io/ios/app/magnetometer-emf-detector/id6752918170)

Transform your device into a precise electromagnetic field detector. Ideal for electrical safety checks, scientific exploration, and environmental monitoring with real-time readings and historical data.

**Highlights:** Real-time EMF detection, Historical trend charts, Customizable alerts, Data export, Multiple units support, Adjustable sampling rates

**In-app purchases:** none


### Stud + Metal Scanner

[App page](https://appshunter.io/ios/app/stud-plus-metal-scanner/id6757409552)

Instantly locate studs, screws, and nails behind walls, or measure magnetic fields (EMF) using your iPhone's built-in sensor. This dual-mode utility is perfect for DIY projects, home improvement, and scientific exploration.

**Highlights:** Stud finder mode, Magnetometer (EMF) mode, Detect studs, screws, nails, and metal, Measure magnetic fields in real-time, Graph view for field changes, Pause scans for precision readings, Re-zero sensor for accuracy

**In-app purchases:** none


## Frequently asked questions

### Is Magnetometer free?

Magnetometer costs $1.99, with no in-app purchases.

### Is Stud + Metal Scanner free?

Stud + Metal Scanner is free to download, with no in-app purchases.

### Which has better reviews, Magnetometer or Stud + Metal Scanner?

Magnetometer and Stud + Metal Scanner are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Magnetometer or Stud + Metal Scanner have ads?

Neither Magnetometer nor Stud + Metal Scanner shows ads.

### Which is updated more often, Magnetometer or Stud + Metal Scanner?

Magnetometer ships an update weekly, and Stud + Metal Scanner every 9 months. Most recently, Magnetometer was updated on October 1, 2026 and Stud + Metal Scanner on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*