# EMF Detector (Scanner) vs Magnetic Sensor

The clearest difference is in-app purchases: Magnetic Sensor at none against EMF Detector (Scanner)'s 2. Magnetic Sensor also leads on iOS requirement (15.1 vs 17.6). EMF Detector (Scanner)'s advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. EMF Detector (Scanner) sells 2 one-off in-app purchases. Magnetic Sensor asks for nothing beyond the download.

EMF Detector (Scanner) ships an update weekly, Magnetic Sensor every 2 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | EMF Detector (Scanner) | Magnetic Sensor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Size | 6 MB | 25 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | +4 | 4+ |
| Developer | [JongMin Lee](https://appshunter.io/developer/1796849061) | [Seonggon Sim](https://appshunter.io/developer/1565259950) |

## What reviewers say

### EMF Detector (Scanner)

[App page](https://appshunter.io/ios/app/emf-detector-scanner/id6759452241)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Premium Pass | $0.99 | one-time |
| 1 Year Premium Pass | $2.99 | one-time |


### Magnetic Sensor

[App page](https://appshunter.io/ios/app/magnetic-sensor/id6764468454)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EMF Detector (Scanner) free?

EMF Detector (Scanner) is free to download, with in-app purchases available.

### Is Magnetic Sensor free?

Magnetic Sensor is free to download, with no in-app purchases.

### Do EMF Detector (Scanner) or Magnetic Sensor have ads?

Both EMF Detector (Scanner) and Magnetic Sensor show ads.

### Which is updated more often, EMF Detector (Scanner) or Magnetic Sensor?

EMF Detector (Scanner) ships an update weekly, and Magnetic Sensor every 2 months. Most recently, EMF Detector (Scanner) was updated on September 22, 2026 and Magnetic Sensor on September 10, 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.*