Stroboscope app for measuring rotating, vibrating, oscillating or reciprocating objects. It is most commonly used for: - adjusting speed of rotation - for example adjusting speed of rotation of turntable - adjusting frequency of vibration How to use: 1. Start app 2. Set frequency of strobe light (in Hz) using number pickers 3. Press ON/OFF button to start the strobe light - use button [x2] to double the frequency - use button [1/2] to halve the frequency - use button [50 Hz] to set frequency