Bass Tuner BT1 is a specialized instrument tuner optimized for tuning low-frequency musical instruments. Tune any bass instrument (bass guitar, double bass, bassoon, bass clarinet, bass trombone, bass saxophone, cello etc.) with this extremely accurate and easy-to-use chromatic tuner. Bass Tuner BT1 also comes with a handy tone generator that plays any note as a reference for tuning.

- Includes all the features of a professional bass tuner.
- Extremely accurate (can be tuned to an accuracy of ±0.1 cents).
- Displays the current note being tuned along with its deviation and current frequency.
- Includes historical graph of the pitch that helps you with the tuning process.
- Tone generator that can generate reference tones over a note-range of 3 octaves.
- Ability to set the frequency of A₄ (for tunings where A₄ is not 440 hertz).

What’s New

Version 1.1.1

Updated the app icon to show more contrast on the red bar that differentiates the free version of Bass Tuner BT1 from the Pro version.

Ratings and Reviews

4.7 out of 5
21 Ratings

21 Ratings

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Tuner BT1

I 👍🙀

Developer Response ,

Thank you for your review! 💕

Justice C. ,

Double Bass Heaven

This app is amazing. It does pick up other sounds but when playing a double bass nothing interferes when you are tuning it. I don't know what's so great about the pro version... The free version works sufficient to my needs

gkdkydkgdu ,

The app

Lagged and it picks up other sounds

Developer Response ,

You can use an audio interface like iRig or Apogee Jam to connect your instrument for tuning while in noisy places so that other sounds are not picked up. Otherwise it is recommended to tune your instrument in a quiet environment. This applies for any tuner in the industry. I hope you will understand and revise your review.


JSplash Apps
7.2 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, Portuguese, Russian, Simplified Chinese, Spanish

Age Rating
Rated 4+
© 2018 JSplash Studios Pvt. Ltd.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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