Pocket Medium uses your device's magnetometer as an EMF detector. This app uses the magnetometer's X, Y axis as EMF Buttons, so unknown entities can write messages.
+X to ascend letters.-X to descend letters.+Y to add letter to board.
If your device doesn't have a magnetometer the program won't work.
Future updates and features comming soon.
I started this project with this hypothesis in mind: Are ghost actually using EMFs to communicate with us using EMF detectors?
With this program we can all find out the truth.