# Stud Finder & Metal Detector — Magnetic Field Scanner

> Detects ferrous metal objects using phone's magnetic field sensor. (iPhone/iPad app by Andrey Ivankin.)

- Source: https://appshunter.io/ios/app/stud-finder-and-metal-detector/id1590127973 (this page in markdown: same URL + `.md`)
- Developer: [Andrey Ivankin](https://appshunter.io/developer/1615973131)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.28/5 from 348 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 12 MB
- Languages: English
- Released: 2021-11-17
- Data updated: 2026-08-16
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/stud-finder-and-metal-detector/id1590127973/reviews.md

## What is Stud Finder & Metal Detector?

This app will help you find ferrous metal objects such as studs, screws, and nails hidden in or behind wood, drywall, OSB, plywood, plaster, etc.

As you scan over a surface with your phone, a smart algorithm analyzes the smallest changes in the magnetic field and detects hidden ferrous objects with unprecedented accuracy. 

Intuitive visual, audio, and tactile indicators will notify you when a ferrous object is detected. In addition, the app displays the absolute value of the magnetic field in microtesla (µT), the dynamics of change, and the history of measurement for solving more complex problems. 

Tips and Tricks
If your device has an external case with metal or magnetic elements, please remove it before using this app.

You can further improve the detection accuracy by first determining the position of the magnetometer sensor inside of your phone. To do this, take a small metal object (for example, a screw) and slowly move along the back surface of your phone, continuously monitoring the absolute value indicator of the magnetic field. The sensor is located at the position with the maximum indicator value. Be careful not to touch and scratch the phone with the screw.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://n17dev.web.app/stud-finder-v2/policy.html

## Key features

- Detects ferrous metal objects
- Analyzes magnetic field changes
- Visual, audio, and tactile alerts
- Displays magnetic field data (µT)
- Measurement history
- Sensor location guidance

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly Subscription | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Stud Finder: Pro Version | $3.99 | one-time |
| Premium Lifetime Subscription | $6.99 | one-time |


## What do users think of Stud Finder & Metal Detector?

Overall sentiment: negative

**Pros**

- 👍 Best stud finder among tested apps
- 👍 Works as advertised
- 👍 Able to find drywall screws
- 👍 Sensitive with slow, continuous movement

**Cons**

- 😞 Useless app
- 😞 Cannot use it
- 😞 Waste of time
- 😞 Doesn't work
- 😞 Not even close to working
- 😞 Terrible performance
- 😞 Off by several inches
- 😞 Unable to locate single stud
- 😞 Reviews seem manipulated
- 😞 Ads interrupt functionality

**Commonly reported bugs**

- Ads appear at critical moments
- Doesn't find anything

**Most requested features**

- More of an x-ray view
- Needs more work

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/stud-finder-and-metal-detector/id1590127973/reviews.md

### 1/5 — Useless

*2024-02-07, version 2.0.2*

´Cancel my subscription noo or w

### 1/5 — Can’t use it

*2022-10-21, version 2.0.1*

You open it, deal with the adds and the moment you hit the wall; AD. Then it doesn’t seem to find anything and BOOM AD.

### 1/5 — Waste of time

*2022-10-02, version 1.0.2*

This is a waste time.

### 1/5 — For Sure!!!

*2022-09-27, version 1.0.2*

It doesn’t work!!!!!! Not even close.  Developer question….what made you think that a phone will work as a stud finder or even find metal????

### 1/5 — Terrible

*2022-07-28, version 1.0.2*

Didn’t find 1 stud in the whole house

### 3/5 — It’s fine but I would change things

*2022-07-12, version 1.0.2*

instead of there being just a screen I feel like there should be more of a x-ray I’m not saying it’s bad it’s good but I think it needs more work

### 1/5 — Stud Finder Doesn’t Work

*2022-06-24, version 1.0.2*

Got it. Tried it. Doesn’t work.

### 1/5 — Wow. Trash

*2022-05-18, version 1.0.2*

Off by 3 inches 3 times. Thanks for nothing
Located sensor in iphone 13 pro max, with a tack so i was accurate. Searched for studs in the wall to mount a rack vertically. The app was unable to locate a single stud in the wall and was off in one instance by more than the width of my phone.

### 1/5 — Stay away from this

*2022-05-01, version 1.0.2*

It doesn’t work
Don’t waste your time on this and $
The reviews R manipulated
STAY AWAY

### 5/5 — Best Stud Finder

*2022-03-11*

I tried about 5 different apps and this is the best for this lady renovator.

**Developer response:** Thank you for sharing your positive experience! We really appreciate your feedback. We're constantly working on improving the app and hope that we can make it even more useful in the future.

## Frequently asked questions about Stud Finder & Metal Detector

### What can this app find?

This app is designed to find ferrous metal objects such as studs, screws, and nails. It works by analyzing changes in the magnetic field behind surfaces like wood, drywall, OSB, plywood, and plaster.

### How accurate is the detection?

The app uses a smart algorithm to analyze the smallest changes in the magnetic field, aiming for unprecedented accuracy in detecting hidden ferrous objects. For optimal results, it's recommended to remove any metal or magnetic elements from your phone's case.

### Is this app free to use?

The app is free to download and use, but it offers in-app purchases. This means you can access its core functionality without initial cost, with optional purchases available for enhanced features or content.

### What devices is this app compatible with?

The app requires a device with a magnetometer sensor to function. It is available on the Apple App Store, indicating compatibility with iOS devices. Users are advised to remove external cases with metal or magnetic elements for best performance.

### How can I improve detection accuracy?

To improve accuracy, you can first locate your phone's magnetometer sensor. Slowly move a small metal object, like a screw, across the back of your phone while monitoring the magnetic field indicator. The sensor is at the point of maximum indicator value. Ensure you do not scratch your phone during this process.

## Version history (last 5 releases)

### 2.1.0 — 2024-05-23

algorithm optimization and bug fixing

### 2.0.2 — 2022-12-23

Minor bug fixes and improvement of algorithms

### 2.0.1 — 2022-10-11

Thank you for using Stud Finder. We are excited to share that we are releasing a major update with new features and significant improvements. These include:
- New and better user interface
- New detection algorithms as well as significantly improved existing algorithms providing faster and more accurate detection
- Ability to tune the sensitivity of the sensors
- New ways to display signal to make finding studs even more seamless
- Bug fixes
Do you like the new release? Please let us know by rating the App in the App Store and leaving a review.

### 2.0 — 2022-10-09

Thank you for using Stud Finder. We are excited to share that we are releasing a major update with new features and significant improvements. These include:
- New and better user interface
- New detection algorithms as well as significantly improved existing algorithms providing faster and more accurate detection
- Ability to tune the sensitivity of the sensors
- New ways to display signal to make finding studs even more seamless
Do you like the new release? Please let us know by rating the App in the App Store and leaving a review.

### 1.0.2 — 2022-02-16

algorithm optimization and bug fixing

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## More apps by Andrey Ivankin

- [Denoise.FX for Audio & Video](https://appshunter.io/ios/app/denoisefx-for-audio-and-video/id1623119654)
- [Light Meter: Lux-525 Pro](https://appshunter.io/ios/app/light-meter-lux-525-pro/id1636117065)
- [Frame Grabber: Best Shots](https://appshunter.io/ios/app/frame-grabber-best-shots/id6756608583)

All apps by Andrey Ivankin: https://appshunter.io/developer/1615973131

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*