Metronome F

This metronome is a really simple metronome including to switch on/off, to change tempo.
It sounds electronic sound.

Function
- Metronome ON/OFF
- Tempo change

Remarks
- Ads is shown during Metronome OFF
- Tempo data is saved. Same tempo will be shown next time.
- available to play on background.
* Back button is regarded as app shutdown. In that time, this app stops the metronome sounds.