Tuner
Tuner Summary
Tuner is a mobile Android app in Music And Audio by Michael Moessner. Released in Apr 2021 (4 years ago). It has about 14.8K+ installs and 203 ratings with a 4.80★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 1.1K monthly active users . Store metadata: updated Nov 6, 2025.
Recent activity: 162 installs this week (703 over 4 weeks) showing steady growth , and 3.00 new ratings this week View trends →
Store info: Last updated on Google Play on Nov 6, 2025 .
4.8★
Ratings: 203
Screenshots
App Description
App for tuning musical instruments
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