Run one guided wall sweep
Move steadily left to right while the app samples magnetic strength along a normalized wall path.
Two passes turn a fleeting peak into comparable evidence
Sweep both ways.
Map what repeats.
Follow one guided pass across the wall, return over the same path, and compare magnetic peaks that repeat near the same estimated position.
Coming soonHow it works
Free at launchiPhone with magnetometer · iOS 18+By Ideas All Day Ltd
Built for the task
Run one guided wall sweep
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 compares forward and return sweeps over one wall section. Its Wall Map highlights magnetic peaks that repeat at similar time-normalized positions. Those peaks can be clues from nearby ferrous screws or nails, but they do not prove wood, exact distance, wiring, pipes, cavities, or safe drilling points.
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.
- Wall Map
- 2 guided passes
- Evidence
- Repeatable peaks
- 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
Repeat in the opposite direction
Return across the same area so one transient reading is not mistaken for repeatable evidence.
Compare both signals together
Review forward and return curves plus the magnetic areas that appeared near the same estimated position.
Use a fast live check
Open Detect for a calibrated strength meter when a complete two-pass map is unnecessary.
Save and share scan evidence
Label the wall section, keep the map locally, or share a plain-text evidence summary.
Keep the limitations visible
The app never labels a signal as wood, wiring, a pipe, a measured distance, or a safe place to drill.
Product tour
See the workflow.
Real screens from the current iPhone experience.
How it works
From input to useful answer.
- 01
Prepare one wall section
Remove magnetic accessories and nearby interference, then calibrate with the phone held in a consistent orientation.
- 02
Complete both guided passes
Sweep left to right at a steady pace, then return across the same path without changing the phone orientation.
- 03
Review what repeats
Compare the curves and estimated positions, then verify every possible fastener clue 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.
What does the Wall Map measure?
It compares magnetic strength over elapsed time during two guided passes. Positions are normalized estimates along the sweep, not centimetres, inches, depth, or a physical map of the wall.
Where are saved scans stored?
Wall Maps and scan notes stay locally in the app’s private container on the iPhone. No account is required.
Preparing for the App Store
Stud Finder is coming soon.
The release package is being prepared and the public App Store page will appear after launch.
Coming soon