Doesn't work Shows a blank axis, doesn't fit on the screen. Galaxy S4
Frequency scale should be logarithmic not linear. Only useful for high freqs.
Very poor Very poor resolution, can't zoom, very narrow bandwidth.
Great! Works exactly as expected. If you don't like it, learn more about sound.
Does not work on my HTC Vision
It corresponded to the model of all the resolution.
The phenomenon in which a display flickered was corrected in some devices.