Strumo

The microphone is used only while the tuner is open. Nothing is recorded or uploaded.

Full access to all Pro features

• A4 calibration, 415 to 466 Hz
• Your own custom tunings
• Every instrument and tuning
• Intonation check at the 12th fret
• No sign-in, no ads, nothing recorded

Standard tunings are free, no limits. Pro adds the rest. Play any string. No microphone yet? Hear a sample: an A string 20 cents flat.

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