Stud Finder: Metal Detector
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About this app
Locate studs, nails, and screws behind your walls with precision. Stud Finder: Wall Scanner & Metal Detector turns your smartphone into a practical DIY tool, using your device's built-in magnetic sensor to detect ferromagnetic metal hidden behind drywall.
Whether you're mounting a TV, hanging shelves, or installing cabinets, the app gives you the real-time data you need to find the right spot to drill — and, just as importantly, tells you exactly where on your phone that reading was taken.
CORE FEATURES
• Find Your Sensor — Your phone's magnetometer isn't in the middle of the device; on many phones it sits near a top corner, up to 6 cm from where you'd naturally mark. A guided one-time setup locates it on your specific handset, so you mark the wall where the metal actually is, not where the crosshair happens to sit.
• Live Field Readout — See the real measurement in microtesla (µT) as you scan, alongside the detection threshold you need to cross. No abstract percentage bars — you can tell a faint signal from a strong one at a glance.
• Stud Centre Detection — The reading climbs as you approach a fastener and falls once you pass it. The app tracks that turnover and marks the peak, so you find the centre rather than an edge.
• Automatic Sensor Correction — Phone magnetometers carry a built-in magnetic offset from the hardware around them, which on some devices is larger than the signal you're hunting. The app measures and cancels this continuously in the background.
• Live Camera Preview — Overlay the scanning interface on your wall to keep your eyes on the surface while you work.
• Built-in Spirit Level — Once you've found the stud, level what you hang on it. A true gravity-based level with a bubble vial, degree readout, and a zero-calibration option for surfaces you know are true.
• Multi-Sensory Feedback — Sound alerts and haptic patterns intensify as the signal rises, so you can scan without staring at the screen.
• Adjustable Sensitivity — Three presets in real µT units, so the same wall reads the same way every time.
HOW TO USE
Locate your sensor — Run the one-time sensor setup and slide a screw or key over the screen to find where your phone measures from.
Calibrate — Hold your phone against the wall and start calibration to establish a baseline.
Scan — Glide the phone slowly and flat across the wall.
Detect — Watch the live µT reading, or listen for the intensifying audio and haptic feedback.
Mark — When the signal peaks, mark the wall at your sensor's position — you've found a fastener, and the stud behind it.
IMPORTANT INFORMATION
• What we detect: magnetic metal — nails and screws. Not wood, not plastic/PEX pipe, and not live electrical wiring.
• Hardware: requires a working built-in magnetometer.
• Take your case off: magnetic cases, wallet cases and pop-sockets overwhelm the sensor and are the single most common cause of poor results.
• Move slowly and keep the phone flat against the wall. Tilting the phone mid-scan is the main source of false readings, and the app will pause its reading while you turn it.
• Depth matters: thick plaster, tile, or lath-and-plaster reduces range. Deeper or weakly magnetised fasteners give weaker signals.
Privacy & Terms: Built for utility and DIY. We prioritise privacy and don't collect unnecessary data. Full privacy policy in app settings.
Subscription: Full access requires a subscription — $4.99/week (3-day free trial) or $39.99/year. No ads, no free tier, no upsells. Cancel anytime in your Google Play settings.
Whether you're mounting a TV, hanging shelves, or installing cabinets, the app gives you the real-time data you need to find the right spot to drill — and, just as importantly, tells you exactly where on your phone that reading was taken.
CORE FEATURES
• Find Your Sensor — Your phone's magnetometer isn't in the middle of the device; on many phones it sits near a top corner, up to 6 cm from where you'd naturally mark. A guided one-time setup locates it on your specific handset, so you mark the wall where the metal actually is, not where the crosshair happens to sit.
• Live Field Readout — See the real measurement in microtesla (µT) as you scan, alongside the detection threshold you need to cross. No abstract percentage bars — you can tell a faint signal from a strong one at a glance.
• Stud Centre Detection — The reading climbs as you approach a fastener and falls once you pass it. The app tracks that turnover and marks the peak, so you find the centre rather than an edge.
• Automatic Sensor Correction — Phone magnetometers carry a built-in magnetic offset from the hardware around them, which on some devices is larger than the signal you're hunting. The app measures and cancels this continuously in the background.
• Live Camera Preview — Overlay the scanning interface on your wall to keep your eyes on the surface while you work.
• Built-in Spirit Level — Once you've found the stud, level what you hang on it. A true gravity-based level with a bubble vial, degree readout, and a zero-calibration option for surfaces you know are true.
• Multi-Sensory Feedback — Sound alerts and haptic patterns intensify as the signal rises, so you can scan without staring at the screen.
• Adjustable Sensitivity — Three presets in real µT units, so the same wall reads the same way every time.
HOW TO USE
Locate your sensor — Run the one-time sensor setup and slide a screw or key over the screen to find where your phone measures from.
Calibrate — Hold your phone against the wall and start calibration to establish a baseline.
Scan — Glide the phone slowly and flat across the wall.
Detect — Watch the live µT reading, or listen for the intensifying audio and haptic feedback.
Mark — When the signal peaks, mark the wall at your sensor's position — you've found a fastener, and the stud behind it.
IMPORTANT INFORMATION
• What we detect: magnetic metal — nails and screws. Not wood, not plastic/PEX pipe, and not live electrical wiring.
• Hardware: requires a working built-in magnetometer.
• Take your case off: magnetic cases, wallet cases and pop-sockets overwhelm the sensor and are the single most common cause of poor results.
• Move slowly and keep the phone flat against the wall. Tilting the phone mid-scan is the main source of false readings, and the app will pause its reading while you turn it.
• Depth matters: thick plaster, tile, or lath-and-plaster reduces range. Deeper or weakly magnetised fasteners give weaker signals.
Privacy & Terms: Built for utility and DIY. We prioritise privacy and don't collect unnecessary data. Full privacy policy in app settings.
Subscription: Full access requires a subscription — $4.99/week (3-day free trial) or $39.99/year. No ads, no free tier, no upsells. Cancel anytime in your Google Play settings.
Stud finder & metal detector to find the nails & screws in your wall studs
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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Phone number
+48791234634
About the developer
Yurii Ivanyshyn
contact@checkengine.space
Jana Czochralskiego 7
50-231 Wrocław
Poland
