Simple and Powerful

I am using it in a project to analyze and make ocarinas. It is proving very powerful at providing information on harmonic content of each of the fingerings as well as reliable at locking onto the fundamental and displaying it. Very useful also is its settings for integration time since the ocarina is a mouth blown instrument and tone changes a lot with how you blow a particular note. True one can think of lots of features you might want to see added, but for the price you get a powerful tool worth every cent of the price.

HiMike45 about FFT Plot