Super Detector for Prank

Do you want how many invisible things around you? Do you want to find them out?
This is a very good app for you. The super detector can find out some invisible creatures around you.
It use your mobile device magnetic sensors to detect sources of variable magnetic emissions.
This app is a radar with detect lurking ghost around you. It will show the numbers and positions of the mystery creatures.
A blue dot will be shown on the radar in case there is nearby a source of magnetic emission.
But, you should not use this app at magnetic fields, just like nearby TV, routers, computers, chargers, mobile phones, etc.
******************Features***************
- Smooth control and detect.
- Wave spectrum of the energy of the environment.
- Magnetic to hold the direction.
- Radar Map: draw the exact point of the detected energy in the circle map
- Clear sound to notice the alarm.

Notice:
It is for entertainment purposes only, make prank with your friends. Results from this application cannot be verified scientifically.
Maybe all of this result is fake.