Pluck
A precise tuner for guitar, bass and ukulele.
Play a string and see the note, how many cents off it is and which way to turn the peg. Pitch is measured on your device; nothing is recorded.
- App Store: iPhone and iPad, iOS 17 or later
- Google Play: Android 10 or later, with a microphone
- In English and Vietnamese
Everything a tuner should do, nothing it should not
Know the moment you're in tune
The needle settles on green and your phone gives a gentle tap when the string lands.
See which way to turn
Every cent flat or sharp, with Tighten or Loosen, before you touch the peg.
13 tunings
Standard, Drop D, Half Step Down, D Standard, Drop C, Open G, D and E, DADGAD, 7-string, 4- and 5-string bass, and ukulele.
Automatic or one string
It finds the string you play, or tap a string to tune just that one.
Chromatic mode
Shows the nearest note of the scale for any instrument or alternate tuning.
Set it up your way
Concert pitch from 415 to 466 Hz, and a tolerance from ±1 to ±15 cents.
Your microphone, used for one thing
Listens only while open
The microphone is on while the tuner is on screen and stops as soon as you leave the app.
Nothing is recorded
Sound is analysed in memory on your device and thrown away. No audio is saved or sent anywhere.
No accounts, no tracking
No sign-up, analytics, ads or third-party SDKs, and the app makes no network connections.
Read the full privacy policy or visit support.