Have you thought that your android device can act as a professional light meter…if no than give it another thought…because with lightshow your android device will act as a professional light meter.And are your friends arguing that there cell is better than yours…dont worry….just show them the sensors present on your android device and the sensors not present on their device with lightshow.Features:* direct reading in lux.* automatic range change.* display light intensity on progressbar.* list of sensors present on your device.* list of sensors not present on your device.* no adds.* small size.