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From Michael Heinz:
Four utility programs in one app. Use your iPhone or iPod as a level, measure every inclination of your device, test environmental noises or check your battery status. Special features: Phonometer -digital display for minimum value, maximum value, average value and the peak value in decibel -analog decibel display -reset for min. and max. - visual LED display, particularly when normal values are exceeded Note: This phonometer is not a substitute for a professional measuring instrument and may differ from actual values, because the built-in microphone was not designed for this purpose! iPod Touch users will need an external microphone. Bubble level - individual calibration for landscape and vertical format -horizontal measuring -vertical measuring Note: Before measuring always calibrate in the appropriate format! Battery monitor -current status display of the battery (in 5% steps predetermined by system) - visual LED-display for specific battery levels -theoretical determination of the remaining time for calls, Internet, standby, video and music (automatic detection of the used equipment and appropriate evaluation based on the official data for this device - For iPod Touch devices data available only for video and audio, therefore no display for Internet and standby) Note: The actual remaining time can vary and differ from the calculations, as battery life and number of charge cycles (ie battery wear) can not be collected in the calculation. Clinometer/Ruler- individual calibration for landscape and portrait format - measuring begins at the horizontal or vertical position - scrollable ruler in centimetres (up to 15 cm) or in inches ( up to 6 inches) Note: Before measuring always calibrate in the appropriate format! This inclinometer is not a substitute for a professional measuring instrument and can deviate from actual values (depending on built-in acceleration sensors). Can also be used as a water level! Tip: When you rating the app ,keep fair !