KopKop metronome (com.mpaja.kopkop) on Google Play
KopKop is your simple to use and accurate metronome. It has tempo from Grave to Prestissimo, 40 to 208 BPM, with adjustable volume. KopKop also has 440Hz tuning sound.Sound is selectable from seven different samples. First beat interval is also selectable.KopKop supports both portrait and landscape orientations and all screen sizes. It does not require a fast CPU for accuracy.