Volume Amplifier app enables you to enhance the volume of loud speakers, ear phones as well as microphone. You just need to use the gauge on the left and the +/- buttons in order to adjust the amplified sound levels. If you want a loud sound on your iPhone or iPod Touch then simple amplifies the sound to make it easier to hear. With the pleasant sound sample, the test to calibrate the sound level will be carried out. This app will increase the volume of the various devices by up to 40%.