MetroTuner is a simple tool combining a metronome and a tuner. This tool is common for musicians, especially for those who play orchestral instruments.

Currently there are two modes in this app, the metronome mode and tuning fork mode.

The metronome mode includes the most commonly used tempi for the user to select. And options for beats per measure and subdivision rhythm can also be selected.

The tuning fork mode will play a pure tone which can be selected by user. The mode may also let user to select the standard frequency for "concert A" tone. This could be useful for orchestral players who might need a standard tone of 442 rather than 440.

More modes may be explored in the future.