Chromatic Tuner: Guitar

Tune your instrument quickly, clearly and confidently.

Tuner uses your phone's microphone to identify the played note, show its frequency in Hz and display the difference in cents. Audio is analyzed 20 times per second for a fast, smooth response.

Chromatic mode automatically detects all 12 notes. Dedicated modes are also included for guitar, 4-, 5- and 6-string bass, ukulele, cavaquinho, mandolin, banjo, violin, cello and double bass. The meter shows whether the note is flat, in tune or sharp, with real-time frequency and cents.

Reference pitch can be adjusted from 420 Hz to 460 Hz, with A4 = 440 Hz as the default.

Microphone audio is processed only on your device and is not recorded, stored or sent. The app has no ads or advertising tracking.

Premium provides unlimited access through a one-time purchase with no recurring subscription.