Uku

Ukulele Tuner

Tuning fades away,
music begins.

Uku does one thing, quietly: it listens to your pitch in real time. Standard tuning and several alternates are supported, with nothing extra on screen — just you and your instrument.

App Store — Coming soon Google Play — Coming soon
Ukulele Tuner
Standard Low G Baritone D Tuning
G4 High G · C E A
In tune
G4 392 Hz
C4 262 Hz
E4 330 Hz
A4 440 Hz

Simple, but nothing missing

Precise real-time detection

Built on the YIN algorithm, it locks onto the fundamental frequency even from harmonic-rich plucks, so the cents deviation is always clear at a glance.

Four tunings

Standard (High G), Low G, Baritone, and D Tuning (Canadian) — switch with one tap.

Glows when in tune

The moment a string is in tune, the screen quietly lights up and holds — no need to keep staring at it to be sure.

A chord chart, always one tap away

Major, minor, dominant 7th, major 7th, and minor 7th — all seven natural roots at a glance, checked mid-practice without leaving the app.

Feedback, seen the moment you send it

Open the menu that slides out from the left edge — whether it's feedback or a feature request, it goes straight to our internal group the moment you send it, not into an inbox nobody reads.

💡 Feature request 🐛 Something's wrong

Ready to start tuning?

iOS and Android versions are launching soon. Leave your email and we'll let you know the moment they're live.