# Metal Detector・EMF Reader vs Metal Detector S

The clearest difference is in-app purchases: Metal Detector S at none against Metal Detector・EMF Reader's 1. Metal Detector S also leads on iOS requirement (13.0 vs 16.6). Metal Detector・EMF Reader's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Metal Detector・EMF Reader sells 1 one-off in-app purchase. Metal Detector S asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Metal Detector・EMF Reader | Metal Detector S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/metal-detectoremf-reader/id6749162622/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 18 MB | 27 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yash Mandhyan](https://appshunter.io/developer/1856960217) | [Yangming Mai](https://appshunter.io/developer/1829264149) |

## What reviewers say

### Metal Detector・EMF Reader

[App page](https://appshunter.io/ios/app/metal-detectoremf-reader/id6749162622)

Transform your iPhone into a versatile tool for detecting metal objects, locating wall studs, and measuring EMF levels. Utilize the device's built-in magnetometer for real-time insights into magnetic fields and signal strength, perfect for various DIY and utility tasks.

**Highlights:** Detect nearby metal objects, Find wall studs, screws, nails, pipes, Real-time magnetic field readings, Live EMF meter and graph visualization, Signal confidence indicator, Axis-based directional detection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $2.99 | one-time |


### Metal Detector S

[App page](https://appshunter.io/ios/app/metal-detector-s/id6751460116)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Metal Detector・EMF Reader free?

Metal Detector・EMF Reader is free to download, with in-app purchases available.

### Is Metal Detector S free?

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

### Do Metal Detector・EMF Reader or Metal Detector S have ads?

Metal Detector S shows ads; Metal Detector・EMF Reader does not.

### Which is updated more often, Metal Detector・EMF Reader or Metal Detector S?

Metal Detector・EMF Reader ships an update weekly, and Metal Detector S weekly. Most recently, Metal Detector・EMF Reader was updated on October 30, 2026 and Metal Detector S on October 9, 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.*