In Tune

Mic off

Guitar · Auto

–

— Hz

−50−250+25+50

← FlatStill when in tuneSharp →

Ready— cents

Input

All 12 notes

A4 = 440 Hz · ±1 cent

Automatic note detection
One note at a time · 55–1,200 Hz

Allow microphone access when prompted.

Settings

Display

Concert A Hz In-tune window

String offsets

6 · E2 5 · A2 4 · D3 3 · G3 2 · B3 1 · E4

In cents. Applied when a string is locked; Auto uses equal temperament.

Signal

Clarity: —
Sample rate: —
Analysis time: —

Clarity measures periodicity, not accuracy. Strobe motion visualizes the estimated pitch difference. The 0.1-cent readout is display resolution; phone accuracy needs calibration. Audio stays on your device.

Measurement lab