dBMeter+ allows you to precisely measure the sound level with the use of the microphone of your device expressed in decibels. Features: • Display average, peak and max levels of audio. • Calibrate it for most precise measures. • Choose the frequency of the measure. • Reset the measures. • Optimized for iOS 8, iPhone and iPad. Even though dBMeter was optimized for more accurate measures it is recommended to use it for entertainment and educational purposes.