iOscilloscope displays the iPhone’s mic in as waveform with fast fourier transform or Sonogram modes – iOscilloscope

For a more advanced view check out SignalScope –

  • Analyze signals coming from the iPhone’s built-in or headset microphone, or from the built-in accelerometer.
  • Zoom in or out on spectrum and waveform displays with two-finger expand/pinch gestures, even while the analyzer is running.
  • Pan vertically or horizontally in zoomed displays with two-finger scrolling.
  • Pinpoint individual sample values or frequencies with a cursor.
  • Save high-resolution spectrum or waveform display images to the iPhone’s Camera Roll photo album.


Sorry, no hardware BNC connector for iPhone as of yet ;)