Haptic-Metronome app for iPhone and iPad
Haptic Metronome allows you to practice not just to audible sound, but to haptic feedback. Its designed to be used primarily with Apple Watch. On an iPhone pan up or down to set your tempo, on Apple Watch just turn the Digital Crown. Now press the start button, and feel the beat. Tempo increments are modeled after the Matrix MR-500 quartz metronome.