Tune the untunable.

A precision strobe tuner built for handpans and other multi-modal instruments where one strike sounds three notes at once.

Read the fundamental, octave, and 12th as independent strobe bands. Isolate any two chosen frequencies with the Spectrum Analyser to reveal their dedicated strobe bands.

Download Open the web app Read the guide
Get V-Tune

Select your platform

iOS

iPhone & iPad. Free on the App Store, with the full 14-day trial built in.

Download on the App Store →

Android

Direct APK download. Sideload — enable "Install unknown apps" for your browser.

Download .apk →

macOS

Universal — Intel & Apple Silicon. Notarized by Apple. Needs macOS 11 Big Sur or later — on an older Mac, run the web app in Chrome or Firefox instead.

Download .dmg →

Windows

64-bit installer. Windows 10 & 11.

Download .exe →
or .msi installer
Windows shows a security warning?

Windows SmartScreen flags installers it hasn't seen many times yet — it's not a virus warning, just an "unrecognised app" notice (V-Tune is open-source and new). To install:

  1. In the browser's download bar, click the ⋯ next to the file → Keep (then Keep anyway if asked).
  2. Open it. If you see "Windows protected your PC", click More info → Run anyway.

Linux

AppImage (universal) or .deb (Debian/Ubuntu).

Download .AppImage →
or .deb package

Web browser

Nothing to install — runs in Chrome, Edge and Firefox, and in Safari 16.4 or later.

Open the web app →
Why V-Tune

Built for instruments that sing in chords

Three-band strobe display

See the fundamental, octave, and 12th as independent strobe bands. Motion means drift; stillness means locked.

Per-band pitch pipe

Hear the reference tone for any band — continuous, or a beep that fires on each strike so you can match by ear.

Live note detection

The note your mic picks up lights up on the pitch wheel in real time, so you always know what you just struck.

Handpan scales built in

Kurd, Amara, Celtic and more — the ding highlighted, every note at its real octave.

Spectrum analyser + isolation

See the full frequency content, then bracket any peak to give it its own dedicated tuning band.

FFT + phase-rate Goertzel

Peak detection finds the loud frequencies; phase-rate analysis measures how stable each one is, frame to frame.

Your sound never leaves your device

V-Tune processes microphone audio entirely on-device, in real time. Nothing is recorded, stored, or transmitted. No accounts, no analytics, no ads, no network requests — the app works fully offline.

Read the full privacy policy →

Questions

What people ask about V-Tune

What is V-Tune?
V-Tune is a precision strobe tuner for handpans and other multi-modal instruments. A handpan note sounds its fundamental, its octave and its 12th at the same time, so V-Tune reads all three as independent strobe bands instead of reporting a single pitch.
Why doesn't an ordinary tuner app work on a handpan?
Because a handpan's overtones are unusually strong. An ordinary chromatic tuner locks onto whichever partial happens to be loudest at that instant, so the reading jumps between the fundamental and its octave or 12th, and can confidently report a note an octave out. V-Tune measures each partial against its own target, so nothing has to win a contest to be read.
Can I tune my own handpan with V-Tune?
Tuning a handpan means reshaping steel by hand. It takes years to learn, and a wrong strike can permanently damage a note field, so it is not something to try on an instrument you care about. V-Tune is for checking where an instrument sits, and for the people who already do the work: makers, technicians, and owners who want to know whether it is time to send it to one.
How much does V-Tune cost?
V-Tune Pro is a one-off payment of GBP 49.99. There is no subscription. One purchase covers every platform, tied to your account, so buying on the website unlocks the phone app too.
Is there a free trial?
Yes, 14 days, with no card required. The trial is the full app, not a limited version.
Which devices does V-Tune run on?
iPhone and iPad through the App Store, Android as a direct APK download, macOS 11 Big Sur or later, Windows 10 and 11, Linux as an AppImage or .deb, and any modern browser including Chrome, Edge, Firefox and Safari 16.4 or later.
How accurate is V-Tune?
Sub-cent on a steady note. V-Tune evaluates the signal exactly at each band's target frequency rather than snapping to the nearest analysis bin, and measures detuning from how the phase drifts across several analysis hops. Where a partial sits well away from its target, it falls back to locating the spectral peak directly.
Does V-Tune work offline?
Yes. All microphone audio is processed on your device, and tuning needs no network connection at all.
Is my playing recorded or uploaded?
No. Microphone audio is processed on-device in real time and is never recorded, stored or transmitted. V-Tune has no ads and no analytics.
Which handpan scales are built in?
Kurd, Amara — which the handpan community also calls Celtic — Pygmy, Low Pygmy, Aegean, Ashakiran, Aavartan, Equinox and Nordlys, in their common note counts, with the ding highlighted and every note placed at its real octave. More scales are added over time. You can also tune chromatically, or type any target frequency in hertz.