Stud Finder & Metal Detector 4+

Magnetic Field Scanner

Andrey Ivankin

    • 4.2 • 284 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


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):
Privacy Policy:

What’s New

Version 2.0.2

Minor bug fixes and improvement of algorithms

Ratings and Reviews

4.2 out of 5
284 Ratings

284 Ratings

Yaphco ,

Great app. Works as advertised.

I used the app to find two-by-fours for wall mounting of a new TV. I was able to find drywall screws behind the paint using my phone saving a trip to Home Depot. Hint: I found it is the most sensitive if you continuously but slowly move your phone across the surface and not just hold static.

Developer Response ,

Thank you for your review and for being a user of our app. It is a great tip - indeed the app works the best if you keep moving the phone across the surface without stopping.

Maxwell the emoji boy ,

It’s fine but I would change things

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

Developer Response ,

Thank you for taking the time to provide the feedback. We are always looking for ways to make the app better and will definitely add your suggestion to the list of future improvements. If you have any additional specific thoughts on how we can improve the app, please contact us from the app (Menu - Contact Us).
Kind Regards, Support Team.

p r f h ,

Wow. Trash

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.

Developer Response ,

Hi p r f h! Thank you for sharing your feedback, and we’re very sorry your experience was not up to your or our standards. We would like to improve on it and make sure this issue does not come up again. Could you please describe in more detail the problem you are experiencing and provide any relevant information?
Our team really appreciates you raising the issue and will work hard to address it.

App Privacy

The developer, Andrey Ivankin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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