MultiTuner for iPhone

Tune guitar, bass,
ukulele and violin.

Built-in presets, chromatic tuning and two free saved tuners. No ads or MultiTuner account.

Download on the App Store

Find your string notes · Explore the app

Built-in tunings are free. No subscription required to tune.

iPhone · iOS 17+

MultiTuner library with named Acoustic, Five-String Bass and Stage Guitar setups. — Three-tuner library shown with Premium; Free saves two.

MultiTuner’s Classic Needle display showing a guitar’s E string in tune. — Three-tuner library shown with Premium; Free saves two.

GuitarBassUkuleleViolinChromatic

Free guitar tuning finder

Drop D or D Standard?
Know what to change.

Choose your starting and target tuning. See which strings move, which stay put, and the exact note for each one.

Compare guitar tunings

Eight tunings · Flat or sharp note names · String-by-string changes

STANDARD DROP D

6E2D25A2A24D3D33G3G32B3B31E4E4

One string changes. The other five stay put.

MultiTuner’s instrument picker with Guitar, Bass, Ukulele, Violin and Chromatic choices.

Built-in instrument presets

Choose guitar, four- or five-string bass, ukulele or violin. Use built-in presets for the tuning you want, or choose chromatic mode to follow any note you play.

Hear high G and low G ukulele

Classic Needle or Precision Meter

Play one clear note at a time. Check its target, then follow the guidance to tune up, tune down, or know when you’re in tune. Choose Classic Needle or Precision Meter; both are included free.

All built-in presets are included in Free.

Save and name your tuners

Give each tuner a name and color, save its tuning and display, then open the setup you need in a tap. Keep two saved tuners free. Premium makes room for a larger library and your own custom tunings.

Either of your two free tuners can be your default.

Free and Premium

No trial or purchase required for the built-in tunings.

Free

Two saved tuners

Two saved tuners
Every built-in preset, including Drop D and DADGAD
Chromatic mode
Classic Needle and Precision Meter

No ads. No MultiTuner account.

MultiTuner Premium

Unlimited saved tuners

Unlimited saved tuners
Create custom tunings with 1–12 strings
Transpose custom tunings
Everything included in Free

Weekly, yearly or one-time lifetime purchase.

Plans and local prices appear in the app before purchase. Subscriptions renew automatically unless canceled. Purchase terms.

App questions

Can I use alternate tunings without Premium?

All built-in presets are free within your two saved tuners, including Drop D, D Standard, Open G, Open D and DADGAD. Chromatic mode is also free. Creating or changing custom target notes, and transposing custom tunings, requires Premium.

Can I tune to E♭ Standard or Drop C?

Use free chromatic mode to follow those notes. They are not built-in presets; creating a saved custom preset with those targets requires Premium. Find the notes and string changes.

What happens to my setups if Premium ends?

Every setup stays saved. The first two remain available, and additional tuners unlock again if Premium returns. An available default stays your default; otherwise MultiTuner opens the first available tuner.

Can I change the reference pitch?

Yes. The free reference-pitch controls cover 400–480 Hz and include quick choices for 432, 440 and 442 Hz, plus a held reference test tone. Read about reference pitch.