Follow a live magnetic signal
Watch the calibrated field value and large strength meter while moving the iPhone slowly across a wall.
A truthful magnetometer-based wall-scanning aid
Follow the signal.
Confirm before drilling.
Calibrate the ambient magnetic field, sweep slowly, watch for nearby ferrous-metal changes, and save useful peak readings with their location notes.
Coming soon · In App Store reviewHow it works
Free at launchiPhone with magnetometer · iOS 18+By Ideas All Day Ltd
Built for the task
Follow a live magnetic signal
Native iOS
The short answer
A direct definition for readers, search engines, and answer systems.
What is Stud Finder?
Stud Finder is an iPhone magnetometer utility that visualizes changes in the nearby magnetic field. It may help locate ferrous-metal screws or nails associated with wall studs, but it cannot directly see wood, wiring, pipes, cavities, or exact stud edges.
The app detects magnetic-field changes, not wood edges, wiring, plumbing, gas lines, or cavities. Always confirm with appropriate tools and safe work practices before drilling or cutting.
- Sensor
- iPhone magnetometer
- Signal
- Nearby ferrous metal
- Confirmation
- Always required
Inside the app
Focused tools, built around one job.
Every feature supports the same workflow, so the app feels like a system rather than a folder of disconnected AI buttons.
01
Adjust sensitivity
Tune how strongly the display reacts to magnetic changes in the current environment.
Calibrate before scanning
Establish a baseline away from strong metal, magnets, cases, and electronics before comparing nearby points.
Save useful scan notes
Label a location and keep peak readings and detected hits for later comparison.
Understand what the sensor sees
In-app guidance explains that the magnetometer responds to ferrous metal rather than directly detecting wood.
Confirm with the right tools
The app cannot rule out electrical wiring, plumbing, gas lines, or other hazards behind a surface.
Product tour
See the workflow.
Real screens from the current iPhone experience.
How it works
From input to useful answer.
- 01
Remove magnetic interference
Move away from strong metal, magnetic accessories, electronics, and other sources that can distort the reading.
- 02
Calibrate and sweep slowly
Hold the phone consistently and compare multiple passes from both directions.
- 03
Mark a clue, then confirm
Treat a peak as a possible fastener location and verify the wall with appropriate tools before drilling.
Who it helps
Useful in the moment you need it.
DIY homeownersRenters planning wall mountsMaintenance teamsPeople comparing magnetic clues
Practical guide
How to find a stud in the wall
Combine visible construction information, repeatable magnetic fastener clues, and appropriate dedicated tools without treating one phone reading as proof of wood, a drilling coordinate, or a cleared wall.
Direct answers
Frequently asked questions.
Does the app directly detect a wooden stud?
No. The iPhone magnetometer responds to nearby magnetic-field changes, often from ferrous-metal screws or nails. A peak may be a clue associated with a stud, not proof of the wood’s location or edges.
Can it find wires or pipes?
No. It cannot reliably detect or rule out electrical wiring, plumbing, gas lines, or other hidden hazards. Use appropriate dedicated tools and safe work practices before drilling.
Why does the reading change near my case?
Magnetic cases, mounts, nearby electronics, speakers, and metal objects can distort the magnetometer. Remove magnetic accessories and recalibrate away from interference.
Where are saved scans stored?
The submitted initial release stores scan notes locally in the app’s private container on the iPhone. No account is required.
Currently in App Store review
Stud Finder is almost ready.
Version 1.0 has been submitted to Apple and the public store page will appear after approval.
Submitted to App Store