Detect studs, nails, and metal with your phone’s magnetic sensor
Stud Finder - Wall Scanner uses your phone’s magnetometer to reveal studs, nails, screws, and other metal behind walls. With 100,000+ total downloads and 940 in the last 30 days, it maintains a healthy user base and a solid rating, though it isn’t ranked on top lists. It offers multiple visualization modes to assist DIY projects and safe drilling preparations.
Pros & Cons
Uses the phone's built-in magnetometer for wall scanning
Offers multiple visualization modes for flexible analysis
Free to use with ads to support continued development
Clear guidance on device compatibility and best-use surfaces
Requires a phone with a built-in magnetic sensor; some devices may not support the app
Ads-supported experience may interrupt usage
Results vary by wall material, object type, and distance from the surface
About Stud Finder - Wall Scanner
Stud Finder - Wall Scanner is a tools app developed by Rich Dev Apps.
How many times has Stud Finder - Wall Scanner been downloaded?
Stud Finder - Wall Scanner has been downloaded 380 thousand times. In the last 30 days, the app was downloaded 940 times.
What is the rating of Stud Finder - Wall Scanner?
Stud Finder - Wall Scanner is rated 4.07 out of 5 stars, based on 770 ratings.
Is Stud Finder - Wall Scanner free?
Stud Finder - Wall Scanner is free to download. The APK download size is 9.34 MB. The latest version available is 1.0.0. The last update was on January 31, 2023.
What are the requirements for Stud Finder - Wall Scanner?
Stud Finder - Wall Scanner requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2020.
Description
📱 Stud & Metal Finder Pro – Your Pocket Wall Scanner!
Looking for a powerful and easy way to find hidden metal, studs, or screws inside walls, floors, or wooden surfaces? 🧲 You’ve just found the perfect tool! Stud & Metal Finder Pro transforms your Android device into a real-time wall scanner using your phone's built-in magnetic sensor (magnetometer).
🔍 Why You Need This App:
With so many electrical cables, metal pipes, nails, screws, and studs hidden inside walls, it’s essential to check before drilling, nailing, or renovating. Our app uses your device’s magnetic sensor to detect the presence of ferromagnetic materials like steel or iron, helping you avoid damage or danger.
✅ Key Features:
• Easy-to-use magnetic detection interface • Multiple scan modes: Meter View, Graph View, Sensor Values, Digital Readings • Detect nails, screws, studs, and other metallic objects • Works best on drywall, wood, and some concrete surfaces • Real-time magnetic field visualization • Infrared detection tips for spotting hidden objects • Best results within 15–25 cm distance • Suitable for detecting metal in wardrobes, beds, and wooden furniture
📊 Detection Modes:
• Digital View – Get a digital magnetic field reading • Meter View – Watch real-time changes in sensor output • Sensor Value – Monitor magnetic field values in microTesla • Graph View – Visualize spikes that may indicate a stud
⚙️ How It Works:
This app reads the magnetic sensor values from your device. When the phone gets closer to a metallic or magnetic object hidden inside a surface, the sensor detects a spike in the electromagnetic field, helping you identify the location.
📌 Stud Finder Tips & Tricks:
• Move phone slowly across the surface • Avoid electronic interference from other devices • Test on a known metal object to understand readings • Use in well-lit areas to identify additional signs • Ideal for bathrooms, bedrooms, wardrobes, changing rooms, and outdoor sheds
📱 Device Compatibility:
This app works only on phones that have a built-in magnetic sensor. Not all smartphones are equipped with one. If the app shows no detection or low response, your device may not have the required sensor. Approximately 86% of modern smartphones include magnetic sensors.
🧠 Common Use Cases:
• Before drilling into a wall • Hanging frames, TVs, or shelves • DIY furniture setup • Scanning hotel rooms or wooden panels • Home improvement projects
📌 Note: This app is not intended for spying or surveillance. It follows Google Play policies strictly and is designed to detect only magnetic fields that help identify physical metallic objects.
📢 Disclaimer:
Results may vary depending on your phone model, the thickness of the wall or material, and the type of object being detected. Always double-check results with professional tools when necessary.
📴 Having Ads? Support Us!
We include ads to support the development and maintenance of this free app. If you prefer, you can disable your mobile data or Wi-Fi while using it. 😊
⭐ If you find this app useful, leave us a kind review and share it with others!
📲 Download Stud & Metal Finder Pro today and explore what’s hidden inside your walls!
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Comments on Stud Finder - Wall Scanner for Android
★★★★★Ronald Vaughn· Nov 9, 2025
Stud & Metal Finder Pro transforms your Android device into a real-time wall scanner using your phone's built-in magnetic sensor (magnetometer).💜💜
★★★★★Ijazasghar· Nov 16, 2025
This app brilliantly turns your phone into a pocket wall scanner using its built-in magnetic sensor — super handy for spotting hidden studs, nails, and metal. It’s intuitive, accurate, and perfect for safe DIY and renovation projects....@
★☆☆☆☆Richard Large· Oct 15, 2025
This app did not detect any nails in my walls, and some were even exposed
★☆☆☆☆Sky Fortenberry· Jan 28, 2026
Fake. Tested on known studs in my home but zero detection
★☆☆☆☆Legris or Bourgeois Peter or Lorene· Nov 9, 2025
A front for aggressive Crypto and Temu advertising - app itself seems useless!
★☆☆☆☆Michael Chillcott· Jan 19, 2026
Way to many adds go from one scan point type to another they give you another add crazy I get adds to make money, but they go way overboard
Google Play Rankings for Stud Finder - Wall Scanner
This app is not ranked
Technologies used by Stud Finder - Wall Scanner
32 permissions·31 libraries
Subscribe to see full permission and library details
Trust & Safety: The app requests a mix of network, notification, launcher badge, and device-sensor permissions, including CAMERA in the requested-permissions list. This is typical for ad-supported utility apps that deliver feature-rich scanning and push updates. Users should review the permissions to ensure they’re comfortable with ad IDs, badge updates, and background activity.
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