Tunero
The minimalist tuner for every instrument.
No ads. No clutter. Just the note, the pitch, and a green light the moment you're in tune.
Coming soon to the App Store
iPhone · Requires iOS 16 or later
What it does
Chromatic auto mode
Detects any note you play, and shows its octave.
Fixed-note mode
Lock the tuner to one note, C through B, and tune straight to it.
You'll know when you're there
The screen turns green and the phone taps once when the note is in tune.
Accurate to the cent
A bar shows exactly how sharp or flat you are.
Adjustable sensitivity
Turn it down for a noisy room, up for quiet practice.
Portrait and landscape
Works whichever way you put the phone down.
Nine languages
Follows your system language, with no setup.
Every instrument
Guitar, bass, violin, viola, cello, ukulele, brass, woodwinds and voice.
Paid once, that's it
No advertising, no in-app purchases, no subscription.
A look at the app
The same tuner in light and dark — it follows whatever your phone is set to.
Private by default
Tunero listens through the microphone to work out the pitch you are playing. That audio is processed live, on your device, and is never recorded, stored or transmitted. No audio leaves your iPhone.
The app itself has no tracking, no analytics, no advertising and no account to create. It collects nothing, so there is nothing to sell, share or leak. This website measures its own traffic, but only if you agree to it — see the privacy policy.
Need a hand?
Answers to the most common questions are on the Tunero support page. Anything else, email tunero@yard25.com — a person reads it.