Fluid, Log Scale and cheap

Good colour for intensity indication, quick and fluid graph. Most apps do basically the same things as this and they cost much more. It doesnt stand, just rotates to the sides, but this is a minor issue. The only reason I didnt give it a 5/5 is because of its misleading number indicator on the notes when you touch on the scale to see the frequency and tones. The frequencies and the tones are correct, but the number of the notes, in 74% of the cases, arent. For example, C1 should be 32,70Hz instead of 65,41Hz which is C2. Every C is wrong and every other note is right until the place where it should start the 5th notes. Instead, the 4th notes are repeated in this region. And, from the 5th and on, all the notes are wrongly numbered.
Besides that, this is still a great app, really recommend it. I just hope this problem gets fixed.
Cheers.

pedrotod about Spectrogram Pro (with super-smooth 60Hz update), v2.4