MagnetMeter - 3D Vector Magnetometer and Accelerometer

Works well on iPhone 4! Tried it with a magnet and the speakers for the magnetic setting, then tried the accelerometer which also works.

Works exactly as described. Anybody with any scientific interest or leaning should spend a dollar and get this thing!

This app is so cool. I use it all the time when I'm messing around in my yard. I can usually always find some rocks that are magnetic or a random piece of metal. Very fun to use.

Works better than I expected. People have no clue what they are talking about . . . "encouraging people to put magnets around electronics". All electronic devices with a current (ie on) produce an EM field. Learn some physics folks. This is a really cool app.

Great product

I'm not sure how this app could look any cooler than it does. It really helps you visualize the invisible forces acting on the iPhones sensors. This must be what evil geniuses play with when they aren't trying to kill James Bond. All I need now is a monocle and a white Persian cat.

This app is dynamite. Very educational about the physical world.<br/><br/>After turning off &quot;Screen Rotation&quot; the screen will nevertheless rotate once before locking.

Does not work on iPod. Should be stated more clearly. iPod does not<br/>have magnetic sensor, from what I<br/>can gather.