The Sound Analyzer app is a great app for analyzing the behavior of your song on different devices and at different volumes. The app has an SLM analyzer that can indicate the maximum pitch in a song, has LAF, LAS, LAI, LAeq, LAE, LEP, LCF, LCS, LCI, LCeq, LCE, LZF, LZS, LZI, LZeq and LZE. You can only use 4 at once, but the app may shut down. You can use these settings to oversee aspects of the sound, meaning that you can see different representations of the sound, as well as its limits. The app can be used in 4 languages: English, Spanish, French and Portugese. The next menu is for analising the sound that is being played, not the timeline of the sound. What this means is that the menu is for spectral analysis. The graphic looks like the volume and pitch visualisators from the Sony casette player, they are like sound waves for the volume of the sound. You can use 1/2, 1/3, 1 octaves as measurement units for the graphic, A, C and Z-Weighting, 125 ms, 1 s, 35/1500 ms or Leq Weighting speeds, you can scroll and zoom the chart, like the other graphic, float over a piece of the chart to see its altitude and volume and all of these happen in real time. You can use this for a band where each instrument has to have a different volume, and the final recording does not have to go over a certain level. Then comes the calibration process which takes a lot of time, especially when you are in a noisy place. The Sound Analyzer app works equally great on all screen sizes categories.