A-Tuner
A-Tuner Summary
A-Tuner is a mobile Android app in Music And Audio by nobapp. Released in Jan 2018 (8 years ago). It has about 1.4K+ installs and 41 ratings with a 4.92★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 72 monthly active users . Store metadata: updated Sep 11, 2025.
Recent activity: 4.00 installs this week (14 over 4 weeks) showing steady growth View trends →
Store info: Last updated on Google Play on Sep 11, 2025 .
4.92★
Ratings: 41
Screenshots
App Description
Ultra accurate chromatic tuner for all musical performers
A-Tuner is a chromatic tuner corresponding to any instruments and boasting the highest level of accuracy among many similar applications.
Precise tuning in increments of 0.1 cents is possible with the strobe tuner like display.
It also has high precision pitch pipe (tuning fork) function which is convenient for training with tuning with ears.
We are planning to improve performance and expand functions in the future. Enjoy!
In addition to the features of the free edition (A-Tuner Lite), the following features are included.
・Transposition
・Note name notations (English, German, Dutch, French, Italian)
・Pitch selection mode (automatic / manual)
・Simple metronome
・Classical temperaments
- Pythagorean temperament
- 1/4 comma meantone
- Pure intonation (major / minor)
- Werckmeister III / IV / Ⅴ
- Young Ⅰ / Ⅱ
- Kirnberger I / II / III
- Vallotti
- Kellner