oTuner

oTuner is a simple tuner for iPhone and Apple Watch.
Just play a note and see the note name and how far off you are, in big, clear type. It covers 12 instruments and 33 tunings, from guitar, bass and ukulele to violin and shamisen.

- TUNE FROM YOUR WRIST

oTuner runs standalone on Apple Watch, no iPhone needed.
On stage or mid-practice with your hands full, just glance at your wrist.
Launch it straight from a watch-face complication.

- NEEDLE AND STROBE

- Meter: the needle and color show at a glance whether you're sharp or flat
- Strobe (Pro): the direction and speed of the moving stripes reveal drift too small for a needle to show
When you're in tune, oTuner shows "In tune" and gives a haptic tap.

- AUTOMATIC STRING DETECTION

In guitar and bass tunings, oTuner detects which string you're playing.
Tuned strings get a check mark, so you always know where you left off.
Tap a string to lock onto it.

- INSTRUMENTS AND TUNINGS

- Chromatic (any note)
- Guitar: Standard / Half Step Down / Whole Step Down / Drop D / Drop C# / Drop C / Open G / Open D / Open E / Open C / DADGAD
- 7-String Guitar: Standard / Drop A
- Bass: Standard / Half Step Down / Drop D
- 5-String Bass: Standard / High C
- Ukulele: Standard / Low G / D Tuning / Baritone
- Violin / Viola / Cello / Double Bass (including solo tuning)
- Mandolin
- Banjo: Open G / Double C
- Shamisen: Honchoshi / Niagari / Sansagari

- MAKE IT YOURS

- Reference pitch (A4) from 415 to 466 Hz (440 Hz, 442 Hz and more)
- Note names as C D E or Do Re Mi
- Haptic feedback on or off
- Light, dark or system theme

- PRIVATE BY DESIGN

- No account needed
- Microphone audio is processed on your device and is never recorded or sent anywhere
- The core features are free

oTuner Pro

Pro unlocks everything:

- No ads, ever
- Strobe display
- Every instrument and tuning (the free version includes Chromatic, Guitar Standard / Half Step Down / Drop D, and Bass and Ukulele Standard)
- Switch instruments and tunings directly on Apple Watch
- Cyberpunk theme

Choose a monthly, yearly or one-time lifetime purchase.
Monthly and yearly plans start with a 1-week free trial. Cancel during the trial and you won't be charged.

ABOUT AUTO-RENEWING SUBSCRIPTIONS
- Payment is charged to your Apple Account at confirmation of purchase.
- Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period.
- Your account is charged for renewal within 24 hours before the end of the current period.
- You can manage subscriptions and turn off auto-renewal in Settings > Apple Account > Subscriptions after purchase.
- Any unused portion of a free trial is forfeited when you purchase a subscription.

Terms of Use: Read on this site →
Privacy Policy: Read on this site →