The first guitar tracker that actually listens.
Put your phone down and play. Plectro listens, logs every session automatically, and scores your tone in real time — all on your device.
Automatic session tracking. No timers, no start buttons.
Accurate to the cent — see instantly whether you're sharp or flat, and which way to tune.
Strum a chord and Plectro names it; play a single note and it tunes you.
Audio is analyzed entirely on your iPhone — never recorded, never uploaded.