# Metal Detector・EMF Reader vs BeyBuilder

The clearest difference is in-app purchases: BeyBuilder at none against Metal Detector・EMF Reader's 1. BeyBuilder also leads on update cadence (every 3 days vs weekly) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

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

Metal Detector・EMF Reader ships an update weekly, BeyBuilder every 3 days. The most recent releases landed on August 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Metal Detector・EMF Reader | BeyBuilder |
| --- | --- | --- |
| 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 | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free | — |
| Size | 18 MB | 7 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yash Mandhyan](https://appshunter.io/developer/1856960217) | [Gerald Chin](https://appshunter.io/developer/6777449049) |

## 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 | $1.99 | one-time |


### BeyBuilder

[App page](https://appshunter.io/ios/app/beybuilder/id6777449047)

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

**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 BeyBuilder free?

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

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

Neither Metal Detector・EMF Reader nor BeyBuilder shows ads.

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

Metal Detector・EMF Reader ships an update weekly, and BeyBuilder every 3 days. Most recently, Metal Detector・EMF Reader was updated on August 9, 2026 and BeyBuilder on September 8, 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.*