Entonal Tuner 4+

Microtonal Instrument Tuning

Node Audio

    • 4.3 • 8 Ratings
    • Free
    • Offers In-App Purchases



New in this update: Non-octave scales are now supported. Bohlen-Pierce scales added to the available scales.

Tune your instrument to any scale you can imagine. Perfect harmony, or super sharp dissonance, and everything in between. Accurately recreate traditional music from around the world, as well as pre-modern western music.

Or use it as a standard instrument tuner!

Each scale can be selected, and its notes can be played to get a feel for it before tuning your instrument.

Each scale may have a different root note (1/1), and the root note frequency (1/1) can be adjusted while tuning.

Entonal Tuner was created when the developer began to learn about Just Intonation and microtonal music. He soon found that it, although some tuning apps support different temperaments and scales, they are difficult to edit, and not a "first class citizen". So the seed was planted... and Entonal Tuner was born.

What’s New

Version 1.2.0

This is a major update, with a completely redesigned interface.
Please note, the first three scales are included in the free version, any others now require the pro upgrade.

New features:
- Accurate meter showing distance from nearest note in cents
- Support for landscape orientation
- Ability to switch notes of a scale on or off
- Custom keyboard for entering pitch values
- Public and user scales separated

Bugs fixed:
- Player would play notes about 100 cents too low on some devices
- The tuner would stop after setting a new buffer size

Ratings and Reviews

4.3 out of 5
8 Ratings

8 Ratings

bluetoucan ,

A great resource

I was VERY happy to pay for this already awesome app - hope future editions can have a little more options for playback tones (sines and/or other more-sustained tones) and the option to play chords, as I’m interested in this app for flexible ear training more than for instrument tuning

xenthuseastic ,

Great Xenharmonic App

I downloaded this for the Bohlen Pierce Scale, and I use it all the time for writing microtonal music. So far it’s the only thing on the app store that does what I want it to do, so thanks for making it.

vinopete ,


Just what I need to tune an instrument using Just Intonation instead of ET. Very good app!

App Privacy

The developer, Node Audio, 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.

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