MultiTuner for iPhone
Tune guitar, bass, ukulele and violin with MultiTuner for iPhone. Clear pitch guidance, every built-in preset and two saved tuners free. No ads or MultiTuner account.
Explore MultiTuner · Find guitar string notes · Get app support
iPhone · iOS 17+
App support
Getting started, microphone access, saved tuners or purchases: find an answer below, or contact us.
Getting started
Add a tuner, choose your instrument and tuning, then allow microphone access. Play one clear note at a time and let the attack settle before adjusting.
Common questions
Which devices are supported?
This release is for iPhone with iOS 17 or later.
MultiTuner cannot hear my instrument
Check microphone access in your device’s Privacy & Security settings. Move closer to the microphone, mute other strings, and reduce background noise. If you changed an audio device, close and reopen the tuner.
The note looks sharp or flat
Check the target tuning and reference pitch in the tuner’s settings. Play a steady note and allow its attack to settle. Chromatic mode compares notes against equal temperament; it is not a piano stretch-tuning system.
What can I use for free?
Save two tuners with all built-in presets, Classic Needle and Precision Meter, reference-pitch adjustment, and the reference test tone. No trial or purchase is required.
What does Premium add?
Premium includes unlimited saved tuners, custom tunings with 1–12 strings, and transposition of custom tunings. Available plans and local prices appear in the app before purchase.
How do I choose a default tuner?
Use Set as Default from a saved tuner’s menu, or the default control while creating or editing a tuner. Either of your two available free tuners can be the default.
What happens when my subscription ends?
Canceling renewal keeps Premium active through the paid period. When access expires, every saved tuner is preserved and the first two remain available. An available default stays your default; otherwise MultiTuner opens the first available tuner. Additional saved tuners become available again when Premium returns.
How do I restore or manage a purchase?
Use Restore Purchases in the Premium screen with the Apple Account used for the purchase. Manage or cancel a subscription in your Apple Account settings. Deleting the app does not cancel a subscription.
Contact support
Email help@sample.audio with your device, operating system, app version, and a short description of what happened.