Tuner

Michael Moessner

About this app

Tuner app for tuning musical instruments with features like:
* Detect pitch based on autocorrelation and FFT spectrum.
* Accuracy improvement by evaluating the spectrum phase information and polynomial fitting.
* Show how pitch changes over time.
* Basic instrument database (chromatic, guitar, bass, violin, ...)
* Support for custom instruments
* Several temperaments like equal, just, Werckmeister, Kirnberger, ...
* Non-12-tone temperaments (EDO 17, 19, ..., 41, 53)
* Scientific settings like FFT window size, FFT window type, overlap and more.
* Open source (https://github.com/thetwom/Tuner)
* Report bugs under https://github.com/thetwom/Tuner/issues

Ratings and reviews

absolutely brilliant tuner! I discovered this just last night. I used the pro version of Datuner for years but the version I have been using does not work on Android 16. found several others including the Peterson strobe which I was looking at purchasing. But I found this one before I purchased anything! beautiful clean interface, open source/free, super accurate, and no ads. thank you so much to the Dev for sharing!

Where has this app been hiding?! This is the best microtonal tuner for Android! I have been searching for a long time for anything useable & only found a web app. I even resorted to buying "Entonal Tuner", which is utterly broken on my current phone & buggy on my tablet. Now this has everything I need & spares me from programming my own app. Thank you so, so much! Finally I can easily tune my 22edo instruments (& 1 in 41edo) on the go with my phone, even without cell signal. What a blessing!

Very accurate and in my opinion nicely visualized (my friends are sometimes confused how it works 🤷‍♂️) The only thing that sometimes annoys me a bit is, when touching the screen to prevent it from going black, I fix the current pitch and can't go on to the next guitar string - but rarely happens, mostly after changing strings, when tuning takes longer (edit: just found the keep screen on option in the app)

What’s new

- Slightly different tuning strategy when signal stays very similar.
- Option to detect the reference frequency in the reference note dialog.