FFT Plot

FFT Plot is a music app built around the fast Fourier transform, so it belongs to the corner of audio tools used by people who want to look at frequency content rather than just hear a track. By our assessment, it is at its best when the job is quick analysis of a sound, because that kind of display can show peaks and balance in a way a plain waveform cannot. The trade-off is that FFT views are only as readable as the person using them; without some audio literacy, the screen can feel like a lot of lines and numbers. In practice this sort of app is about staring at a live plot, not about making music itself, and that makes it more of a technical helper than a creative instrument. FFT Plot sits closer to analysis utilities than to players or editors, and the catalogue’s Music label fits that use. The name tells you the ceiling clearly: it is for frequency work, not for a full studio on a phone.