Stud Finder

Support

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Common questions

I bought Pro but it isn't unlocked.
Open About, tap See Pro, then Restore purchases, signed in with the Apple ID or Google account you paid with.

How do I cancel a subscription or get a refund?
Subscriptions and refunds go through Apple or Google. On iPhone: Settings, your name, Subscriptions; refunds at reportaproblem.apple.com. On Android: Play Store, your profile, Payments and subscriptions; see Google Play's refund help.

Can it find wooden studs?
Not directly. No phone has a sensor that sees wood. The app finds the steel screws and nails that hold drywall or plasterboard to the studs. Several of them in a vertical line mark a stud. Studs are usually 40 cm (16 in) or 60 cm (24 in) apart, centre to centre.

The reading jumps around or is high all the time.
Take off any magnetic case, wallet or car mount plate. Move away from laptops, speakers and metal furniture, then reopen the Detector so it zeroes itself (or, with Pro, tap Calibrate). Then bring it to the wall.

It doesn't react to a nail I know is there.
With Pro, raise the sensitivity. Lead with the top edge of the phone: the sensor is usually near the top. Slide slowly and keep the phone flat on the wall. Very deep, small or non-steel nails may not show.

Can it find pipes and wires?
It finds iron and steel pipes. Copper and plastic pipes and electrical wires usually don't show up, and the app cannot tell whether a wire is live. Always use a proper detector before drilling.

What do Raw and Compensated mean in About? (Pro)
Raw reacts to every change in the field, which is best for finding nails. Compensated uses your phone's own correction; it is steadier but can slowly hide a field that doesn't move. Recalibrate after switching.

The ruler is a little off. (Pro)
Screens differ. Open Ruler, tap Calibrate with a card, lay any bank card on the screen and tap minus or plus until the box matches the card.

Why is there no sound?
On iPhone the alert follows the ring/silent switch. Check that Sound is on in the Detector screen and that your volume is up.

The level is off by a little. (Pro)
Phone cases with a camera bump tilt the phone. Try it without the case, or stand it on its edge for the bar level.