Guitar Tuner: Strobe & Cents

Tune your guitar quickly and see exactly what the pitch is doing.

Guitar Tuner listens through your microphone, detects the nearest note, and shows the measured frequency, cents deviation, tuning direction, signal confidence, and stability. Basic tuning works without an account and remains available offline.

FAST, CLEAR TUNING

• Start with a chromatic tuner or choose an instrument preset • Detect notes and strings automatically • See whether the pitch is low, in tune, or high • Use cents and frequency readouts for finer adjustments • Tune with Guitar Standard, Drop D, Half Step Down, and other available tunings • Set a capo position and let target notes transpose automatically

MORE THAN GUITAR

Use built-in presets for bass, ukulele, violin, viola, cello, double bass, piano, and other instruments. You can also work with custom instruments, tunings, reference pitch, and temperaments.

TOOLS FOR CLOSER LISTENING

Explore a visual strobe tuner, precision readouts, a spectrum view, reference tones, and drone notes. Guitar-focused tools help you check intonation and compare pitch across the fretboard. Piano tools support note-by-note tuning, stretch curves, inharmonicity measurements, and unison work.

SAVE YOUR WORK

Create instrument profiles, record tuning sessions, review previous measurements, and compare results over time. When you need to share a session, preview and export a tuning report.

BUILT FOR BEGINNERS AND EXPERIENCED PLAYERS

Follow guided tuning steps when you are learning, or open the detailed tools when you want more control. The interface supports iPhone and iPad, Dark Mode, Dynamic Type, and VoiceOver.

Free tuning essentials are available without a subscription. Some advanced tools, extended catalogs, history, customization, and professional workflows require an automatically renewing subscription. Subscription options and prices are shown before purchase. Subscriptions renew automatically unless canceled. You can manage or cancel your subscription in your App Store account settings.

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