Magnetic Field Counter

Contains ads
4.2
107 reviews
10K+
Downloads
Content rating
Everyone
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About this app

The magnetic field sensor in your device is continually monitored and when the detection level is crossed, the counter is increased by one.

• Detect from the magnetic field in either of the X, Y, Z directions, or from the magnitude of the magnetic field, |B|.

• Detect on rising or falling past the detection level.

• AC or DC coupling option.

• Adjust measurement speed to one of 12 frequencies between 0.5 Hz and 2 kHz.

• Reduce double counts with optional no-count wait after detection.

• Graph to show magnetic field values.

• Counts indicated on graph and with optional 'click' sound.


Magnetic field sensors will vary in sampling speed, resolution and accuracy from one device to the next. For indication only.

Don't put a strong magnet too close to your device – you risk damaging the sensor/device. However, waving your device around in all three axis should restore the magnetic field sensor to good working order.
Updated on
Jan 4, 2024

Data safety

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.2
104 reviews
Danil Tkachenko
August 6, 2020
Please add the frequency counter - how many counts are/were there per second. If you could also add a calculator of the frequency into some other units through a coefficient, that could give people an ability to use your app to count e.g. speed or any other metric based on magnetic spinners.
2 people found this review helpful
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A Google user
December 26, 2018
Would be great if it could report the frequency of the changing field
6 people found this review helpful
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Ash Eivani
March 7, 2021
Amazing! Works perfectly
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What's new

v1.06 Updated to use newer code methods to better target and run reliably on devices in 2024.