# Metal Detector・EMF Reader vs PuzzleLens

The clearest difference is in-app purchases: PuzzleLens at none against Metal Detector・EMF Reader's 1. Metal Detector・EMF Reader's advantage is ads (none vs shown) and iOS requirement (16.6 vs 18.0). 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. PuzzleLens asks for nothing beyond the download.

Metal Detector・EMF Reader ships an update weekly, PuzzleLens every 8 days. Both last shipped on October 12, 2026.

## The numbers

| Metric | Metal Detector・EMF Reader | PuzzleLens |
| --- | --- | --- |
| 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** | Every 8 days |
| Monetization | Free | — |
| Size | 18 MB | 7 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yash Mandhyan](https://appshunter.io/developer/1856960217) | [Alperen Saglam](https://appshunter.io/developer/6797633691) |

## 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 |


### PuzzleLens

[App page](https://appshunter.io/ios/app/puzzlelens/id6812349555)

**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 PuzzleLens free?

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

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

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

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

Metal Detector・EMF Reader ships an update weekly, and PuzzleLens every 8 days. Most recently, Metal Detector・EMF Reader was updated on October 12, 2026 and PuzzleLens on October 12, 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.*