oTuner - Guitar & Bass Tuner

oTuner is a simple tuner for Android.
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.


- NEEDLE AND STROBE

- Meter: the needle and color show at a glance whether you're sharp or flat
- Strobe (FAMILY): 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


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oTuner FAMILY
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Join the FAMILY to unlock 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)

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 SUBSCRIPTIONS
- Payment is charged to your Google Play account at confirmation of purchase.
- Subscriptions renew automatically unless cancelled before the end of the current period.
- You can manage or cancel subscriptions in the Google Play Store under Payments & subscriptions > Subscriptions.

Terms of Use: https://shion.industries/apps/otuner/terms/
Privacy Policy: https://shion.industries/apps/otuner/privacy/

Recent changes:
oTuner is now on Android. Just play a note to see the note name and how far off you are.