Tuner: Guitar, Violin & More

Tuner is a fast, accurate chromatic tuner for string instruments — and anything else.

Pluck a string and the needle dial responds instantly, showing the note and how many cents sharp or flat you are, just like a classic analog tuner. When the sound fades, the reading holds in place so you can read it at a glance.

INSTRUMENTS
• Guitar, Violin, Viola, Cello (Violoncello), Double Bass, Banjo, Ukulele
• Chromatic mode tunes any instrument to the nearest note

ACCURATE PITCH DETECTION
• Time-domain (YIN) detection stays accurate on the lowest strings — down to a double bass — and is robust against the rich overtones strings produce
• Smoothed, stable readings to within a couple of cents

FOR EVERY STYLE OF PLAYING
• Temperaments: Equal, Just intonation, Pythagorean, quarter-comma Meantone, Werckmeister III
• Orchestral tuning: shift the reference pitch (A4) from 415 to 466 Hz
• Tone naming: English, German (H), or Solfège

SIMPLE AND PRIVATE
• Clean, distraction-free dial
• Works offline — audio is analysed on your device and never leaves it

Tune up in seconds, whether you play folk, classical, or orchestral.