Stud Finder - Wall Scanner
Magnetometer Stud Detector
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Find studs behind drywall using your phone's magnetometer. Detects the screws and nails holding drywall to studs. No ads, no interruptions.
Find studs behind drywall using your iPhone's built-in magnetometer.
This app detects metal fasteners (the screws and nails holding your drywall to wood studs) and helps you locate stud lines behind your wall.
HOW IT WORKS
Your drywall is screwed into wooden studs roughly every 16 inches. This app picks up those screws by reading changes in the magnetic field as you sweep your phone across the wall. Find screws in a vertical line and you've found the stud.
HOW TO USE
Take your case off. Hold your phone flat against the wall. Sweep slowly left and right. When the signal spikes, there's metal nearby. Mark each spike, look for a vertical line of hits, and that's your stud.
Drill a small pilot hole before you mount anything heavy. If the bit hits something solid, you're on the stud. If it punches right through, move an inch and try again. Takes 30 seconds.
WHAT THIS APP CANNOT DO
It detects metal, not wood. If there are no screws or nails in the wall where you're scanning, it won't find anything. It also won't work well through thick plaster, concrete, or tile. And it's not a replacement for a professional stud finder on structural work.
For mounting a TV, hanging shelves, or putting up pictures on normal drywall, it works.
No ads. No nag timers. No interruptions.
PRIVACY
No account. No tracking. No data leaves your phone.
Ratings & Reviews
Bug fixes.
The developer, Monolayer Studio, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Monolayer Studio LLC
- Size
- 1.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Monolayer Studio LLC