A live violin tuner and intonation practice coach.
Point it at your instrument for the note, a cents meter, and instant flat / in-tune / sharp feedback.
Play a steady open-string drone to tune your ear and match your intonation by feel.
A clean, adjustable metronome built in, so practice tools live in one place.
Short intonation exercises that coach you note by note and score how in-tune you played.