# Magnetic Detector, Stud Finder vs 核辐射检测

The clearest difference is ads: 核辐射检测 at none against Magnetic Detector, Stud Finder's shown. 核辐射检测 also leads on update cadence (every 9 days vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Magnetic Detector, Stud Finder sells 4 in-app purchases, starting at $4.99 per 7 days and 核辐射检测 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Magnetic Detector, Stud Finder ships an update every 2 months, 核辐射检测 every 9 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Magnetic Detector, Stud Finder | 核辐射检测 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (444 ratings)](https://appshunter.io/ios/app/magnetic-detector-stud-finder/id1403751803/reviews)** | — |
| Number of ratings | **444** | — |
| Positive reviews | 90.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 28 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Bello](https://appshunter.io/developer/1013437387) | [薇 吴](https://appshunter.io/developer/1655264256) |

## What reviewers say

### Magnetic Detector, Stud Finder

[App page](https://appshunter.io/ios/app/magnetic-detector-stud-finder/id1403751803)

This app uses your device's magnetometer to detect magnetic and electromagnetic fields. It helps locate metal objects, hidden wires, pipes, and even wood studs behind walls. Get real-time readings and alerts to explore your surroundings.

**Highlights:** Detects magnetic and EMF fields, Locates metal objects, wires, and pipes, Finds hidden wood studs behind walls, Real-time magnetic field intensity readings (μT & mG), Active detection beep alerts, Automatic storage of time and measurements

**Features:** Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Full Access | $4.99 | per 7 days |
| Remove Ads - Magnetic Detector | $2.99 | one-time |
| Unlock all - Premium & Warning Beep | $4.99 | one-time |
| Lifetime Full Access | $12.99 | one-time |

**What reviewers like**

- ⭐ Accurate magnetic detection
- 👍 Easy to use and intuitive
- 🔍 Helpful for finding hidden metal objects
- 🔧 Useful for troubleshooting mechanical issues (e.g., magnetized watches)

**What reviewers complain about**

- 💰 Ads can be intrusive in free version
- 🔒 Concerns about privacy and data collection
- 🔋 Potential impact on device battery life

**Reported bugs**

- Readings sometimes inconsistent or stop at certain thresholds
- Compatibility issues with some devices

**Requested features**

- Add support for measuring electric fields
- Improve accuracy and sensitivity
- Provide more detailed readings and analysis


### 核辐射检测

[App page](https://appshunter.io/ios/app/id6464470636)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 核辐射检测永久会员 | $2.99 | one-time |


## Frequently asked questions

### Is Magnetic Detector, Stud Finder free?

Magnetic Detector, Stud Finder is free to download, with in-app purchases available.

### Is 核辐射检测 free?

核辐射检测 is free to download, with in-app purchases available.

### Do Magnetic Detector, Stud Finder or 核辐射检测 have ads?

Magnetic Detector, Stud Finder shows ads; 核辐射检测 does not.

### Which is updated more often, Magnetic Detector, Stud Finder or 核辐射检测?

Magnetic Detector, Stud Finder ships an update every 2 months, and 核辐射检测 every 9 days. Most recently, Magnetic Detector, Stud Finder was updated on November 2, 2026 and 核辐射检测 on October 30, 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.*