Did you know that you can turn your phone into a functional metal detector? With the help of free apps, anyone can now identify the presence of nearby metal objects, such as coins, tools, antiques, and even buried objects. If you are curious, adventurous, or just want to test this technology, keep reading to learn about the best apps available for detecting metal using your phone.
Metal detector
Most smartphones have built-in magnetic sensors, such as magnetometers — the same ones used to display compasses. These sensors can detect changes in the magnetic field around the device. Metal detection apps take advantage of this to show you when there’s something metal nearby. And the best part is, you can start using them right away, without needing any additional accessories.
How do metal detector apps work?
These apps use your phone's internal sensors to measure the strength of the magnetic field. When you bring your phone close to a metal object, the sensor detects the change and emits visual or audible alerts. Some apps even show real-time graphs, indicate the signal strength, and even vibrate as you approach something metal.
While they are no substitute for professional detection equipment, these apps are great for casual use and work surprisingly well in environments like backyards, garages, beaches, or trails.
The best apps for finding metals with your cell phone
We've selected the most popular and highly rated apps in the app stores for you to try:
- Metal Detector – Smart Tools Co.
One of the oldest and most reliable apps in the category. It shows the intensity of the magnetic field and emits sounds when it detects something. - Magnetic Metal Detector – Netigen Tools
Modern interface, accurate reading and ideal for use in Portuguese. It has vibration mode and visual alerts. - Metal Detector EMF
In addition to detecting metals, this app can identify nearby electromagnetic fields, offering a broader analysis of the environment. - Gold and Silver Detector
Although it is not able to distinguish types of metal, the app simulates this function with different alerts, ideal for entertainment.
Tips for best results
- Remove the phone case to avoid interference.
- Keep your phone away from speakers or magnets.
- Use the app on flat surfaces and away from electrical outlets.
- Try moving your phone slowly over the desired location.
Is it worth using?
Yes! If you’re looking for a fun and useful tool to explore, play around with, or even test out small projects, metal detector apps are a great option. They’re lightweight, free, and run on most Android and iOS phones. Although they can’t replace professional detectors in terms of accuracy and range, they’re perfect for beginners or those just curious.
