Audilyzer is a free-to-use, audible frequency spectrum analyzer app available on Android platform. It offers an FFT window size of 2048 or 1024 samples for excellent frequency analysis precision. The app stands out from other frequency spectrum analyzer apps due to its various distinguishable assets.

One of its most significant features is the 3 interchangeable window functions that reduce spectral leakage, namely Blackman-Harris (default), Hanning, or rectangular. The intelligent adaptive FFT size allocation system is another impressive feature that makes this app unique. Users can choose logarithmic scales (X and Y) and create a second reference plot. The app also offers a customizable update rate in ms and 3 color themes and 3 graph modes to choose from. Furthermore, the app displays the precise peak frequency value in Hz and has a unique amplitude relative gradient color scheme.

Overall, Audilyzer is an excellent choice for anyone looking for a free frequency spectrum analyzer app with a range of customizable features. The app is user-friendly and easy to navigate. If you encounter any unexpected behavior or have any suggestions, you can contact the developer at