# Metal Detector EMF+ vs 3D户型图

The clearest difference is price: Metal Detector EMF+ at Free against 3D户型图's $0.99. 3D户型图's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On update cadence, ads and device support there is nothing between them.

Metal Detector EMF+ is free to download; 3D户型图 costs $0.99 up front. Metal Detector EMF+ sells 3 in-app purchases, starting at $0.99 per 7 days. 3D户型图 asks for nothing beyond the download.

Metal Detector EMF+ ships an update monthly, 3D户型图 every 5 weeks. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Metal Detector EMF+ | 3D户型图 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/metal-detector-emf-plus/id6736949895/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Subscription | — |
| Size | 18 MB | 35 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [子煜 孟](https://appshunter.io/developer/1690092242) | [北京才牛图科技有限公司](https://appshunter.io/developer/1556885180) |

## What reviewers say

### Metal Detector EMF+

[App page](https://appshunter.io/ios/app/metal-detector-emf-plus/id6736949895)

This utility app uses your device's magnetometer to measure magnetic fields and detect metal objects. It offers real-time data, customizable alerts, and historical logging for various applications.

**Highlights:** Magnetic field measurement, Metal object detection, Real-time data display, Customizable alerts, Historical data logging, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Weekly Subscription | $1.99 | per 7 days |
| Lifetime Use | $4.99 | one-time |


### 3D户型图

[App page](https://appshunter.io/ios/app/3d/id6777304138)

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

**In-app purchases:** none


## Frequently asked questions

### Is Metal Detector EMF+ free?

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

### Is 3D户型图 free?

3D户型图 costs $0.99, with no in-app purchases.

### Do Metal Detector EMF+ or 3D户型图 have ads?

Neither Metal Detector EMF+ nor 3D户型图 shows ads.

### Which is updated more often, Metal Detector EMF+ or 3D户型图?

Metal Detector EMF+ ships an update monthly, and 3D户型图 every 5 weeks. Most recently, Metal Detector EMF+ was updated on September 28, 2026 and 3D户型图 on October 11, 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.*