Measuring Center by Spl-Lab is a free Android application that provides a suite of tools for analyzing sound on-the-go. It allows users to measure the amplitude-frequency characteristic (AFC) of a signal, display a signal waveform, and measure the total harmonic distortion (THD). Users can also measure the sound pressure level (SPL, dB Drag, IdBL, ESPL, AMT, etc.), and view the results in linear, logarithmic, and octave formats. The app can measure the amplitude and frequency of the peak values of the spectrum and the average level of sound pressure in time (Bassrace, Bass Boxing, AMT SPL-Show, etc.). Additionally, the application supports both wired and wireless Spl-Lab devices, including USB Bass Meter, USB RTA Meter, and Wireless Bass Meter. The app's interface is user-friendly, and it is easy to navigate and use.