Metal Detector
Metal Detector Summary
Metal Detector is a ad-supported Android app in Tools by Smart Tools co.. Released in Aug 2011 (14 years ago). It has about 24.9M+ installs and 116.8K ratings with a 4.01★ (good) average. Based on AppGoblin estimates, it reaches roughly 1M monthly active users and generates around $>100K monthly revenue (0% IAP / 100% ads). Store metadata: updated Dec 31, 2025.
Recent activity: 11.4K installs this week (45.4K over 4 weeks) showing steady growth , and -13 new ratings this week View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Feb 24, 2025.
Store info: Last updated on Google Play on Dec 31, 2025 .
4.01★
Ratings: 116.8K
Screenshots
App Description
Find the metal, magnetic field and electromagnetic wave around you.
Metal Detector is in the 3rd set of the Smart Tools collection. EMF detector
<< Metal Detector apps require a magnetic sensor (magnetometer). If this app does not work properly, please check the specifications of your device. >>
This app measures magnetic field with an embedded magnetic sensor.
The magnetic field level (EMF) in nature is about 49μT(micro tesla) or 490mG(milli gauss); 1μT = 10mG. When any metal(steel, iron) is near, magnetic field level will increase.
Usage is simple: Open the app, and move it around. The magnetic field level will constantly fluctuate. That's it!
You can find electrical wires in the walls (like a stud detector) and iron pipes in the ground.
A lot of ghost hunters had downloaded this app, and they had experimented as a ghost detector.
The accuracy depends entirely on your magnetic sensor (magnetometer). Note that it is affected by electronic equipment (TV, PC, microwave) due to electromagnetic waves.
* Main features:
- Alarm level
- Beep sound
- Sound effect on/off
- Material design
* Pro version added features:
- No ads
- Compass
* Do you want more tools?
download [Smart Compass Pro] and [Smart Tools 2] package.
For more information, watch YouTube and visit the blog. Thank you.
** Metal detector cannot detect gold, silver and coins made of copper. They are classified as non-ferrous metal that has no magnetic field.