# EMF Detector vs APN切替ナビ

The clearest difference is update cadence: APN切替ナビ at daily against EMF Detector's every 6 days. APN切替ナビ also leads on iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EMF Detector ships an update every 6 days, APN切替ナビ daily. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | EMF Detector | APN切替ナビ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (9 ratings)](https://appshunter.io/ios/app/emf-detector-emf-meter/id6759903916/reviews)** | — |
| Number of ratings | **9** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 days | **Daily** |
| Monetization | Ad-supported | — |
| Size | 53 MB | 25 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) | [Takara Yamazaki](https://appshunter.io/developer/1895148792) |

## What reviewers say

### EMF Detector

[App page](https://appshunter.io/ios/app/emf-detector-emf-meter/id6759903916)

This utility app transforms your iPhone's magnetometer into an electromagnetic field scanner. It offers three distinct modes for safety, general readings, and paranormal investigation, with features like measurement history and comparison.

**Highlights:** Magnetometer-based EMF scanning, Auto, Safety, and Paranormal modes, Measurement history with trend charts, Notes and favorites for readings, Compare saved readings, Calibration offset, Share readings as image or CSV

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

**In-app purchases:** none


### APN切替ナビ

[App page](https://appshunter.io/ios/app/apn/id6764592637)

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

**In-app purchases:** none


## Frequently asked questions

### Is EMF Detector free?

EMF Detector is free to download, with no in-app purchases.

### Is APN切替ナビ free?

APN切替ナビ is free to download, with no in-app purchases.

### Do EMF Detector or APN切替ナビ have ads?

Both EMF Detector and APN切替ナビ show ads.

### Which is updated more often, EMF Detector or APN切替ナビ?

EMF Detector ships an update every 6 days, and APN切替ナビ daily. Most recently, EMF Detector was updated on October 24, 2026 and APN切替ナビ on October 13, 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.*