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Mini Magnet

By Joja

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This educational app lets you explore magnetic fields with your iPhone 3GS.

Imagine your phone's magnetic sensor as a small magnet. Other than a usual compass, it can rotate freely in all directions. This lets you explore the direction of the earth's magnetic field in 3D.
To let you see the angle of incidence better, the app shows a thin stick pointing up and down together with the magnet.

You can also test the effect of other magnets close to the phone, but be aware that the sensor is quite sensitive and easily reaches its limits. If that happens and the small display shows 'Out of Range !', move the magnet further away. If the magnet seems stuck after that or behaves strangely, shake the phone to recalibrate the sensor.

iPhone Screenshots

iPhone Screenshot 1
iPhone Screenshot 2

Customer Reviews


Functions as promised on 4S. Magnet rendering is a bit pixelated, but you can see that in the previews. Little on-screen indicator showing the location of the magnetometer in the phone seems pretty accurate. No problem finding the little magnets in my MacBook that close the screen latches!

Mini Magnet
View in iTunes
  • Free
  • Category: Education
  • Released:
  • Version: 1.0
  • Size: 0.4 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 3.1 or later. Compatible with iPhone 3GS, iPhone 4, iPhone 4s, iPhone 5, iPhone 5c, iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, and iPad.

Customer Ratings

Current Version:

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