Please be aware that the sound volume of the app is very low.

Simple and powerful, this double bass tuner is both in one! You can listen the sound of each tuning string as well check & fine-tune the strings with the help of the chromatic tuner, placed in the middle of the app window!
* Chromatic tuner with audio-input and microphone support,
* Tone generator with authentic double bass sound,
* Automatic repeating of the playing sounds,
* 11 pitches modes:
+ Baroque,
+ Scientific,
+ France1859,
+ New Philharmonic,
+ Concert Pitch,
+ Boston Symphony Orchestra,
+ New Berliner Philarmoniker,
+ Moscow Theater,
+ Old Berliner Philharmoniker,
+ Old Philharmonic,
+ Renaissance
* Retina display support.

What’s New

Version 1.7

This app has been updated by Apple to use the latest Apple signing certificate.

Rotation for iPad (portrait and landscape orientations)
Added Video Tutorial
Added Introduction
Added Volume Control
Added privacy policy into the app menu

Ratings and Reviews

1.0 out of 5
2 Ratings

2 Ratings

tqevans ,


The tuning notes can barely be heard on an iPhone without earphones — but if i have to put in earphones then i can’t hear myself tuning the bass!!! (And as the app suggested when there is no sound i checked the mute buttons on the phone and they were not on, so that’s not the problem). The repeat function would be handy to give consistent repeated tones while you are tuning but the repeated tones are NOT consistent, with each one slightly different in frequency and timbre. Why not do what it says and repeat the same tone??? And the tuning meter in the center of the screen is a joke. First, it does not even register the correct note when you play the app’s OWN tuning note! And then it jumps all over the place when you play a consistent note on your bass. Go buy a clip on electronic bass tuner, this app is not even worh the little bit of money it costs.

App Privacy

The developer, Max Schlee, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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