A-Tuner2.8.1 - Google Play
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Publisher Description
Ad-free chromatic tuner with 0.1-cent display and 14 historical temperaments
A-Tuner is a full-featured, ad-free chromatic tuner for a wide range of instruments, from strings to winds. Its uncluttered display lets you focus on tuning and practice.
Play a note and your device's microphone picks it up. A rotating indicator and bar show whether the pitch is sharp or flat, while the note name, octave, frequency, and pitch deviation appear at a glance. Pitch deviation is displayed in 0.1-cent increments, helping you make fine adjustments with confidence.
The built-in tone generator can play the note of your choice, and the metronome is ready for everyday practice. You can also adjust the concert pitch, input sensitivity, in-tune tolerance, and display theme to suit your instrument and playing environment.
Key features:
• Pitch deviation displayed in 0.1-cent increments
• Clear visual guidance with a rotating indicator and bar
• Note name, octave, and frequency display
• Adjustable concert pitch
• Automatic or manual input sensitivity
• Transposition
• Automatic or manual note selection
• English, German, Dutch, French, and Italian note naming systems
• Octave stretch tuning for keyboard instruments
• Light and dark display themes
• Selectable reference tones
• Metronome
14 historical temperaments:
• Pythagorean
• Quarter-comma meantone
• Just intonation (major and minor)
• Werckmeister III, IV, and V
• Young I and II
• Kirnberger I, II, and III
• Vallotti
• Kellner
Use standard equal temperament or explore historical temperaments to find the sound that best suits your instrument and music.
About A-Tuner
The company that develops A-Tuner is nobapp. The latest version released by its developer is 2.8.1.
To install A-Tuner on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-09-25 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the A-Tuner as malware as malware if the download link to jp.nokubi.nobapp.atuner.pro is broken.
How to install A-Tuner on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the A-Tuner is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by A-Tuner will be shown. Click on Accept to continue the process.
- A-Tuner will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
Program Details
System requirements
Download information
Pricing
Version History
version 2.8.1
posted on 2026-09-25
v2.8.1
* Fixed incorrect intervals in the Pythagorean temperament.
v2.8.0
* Android 16 is now supported.
* Android 6.x is no longer supported.
* Improved stability when switching between apps.
v2.7.0
* Android 15 is now supported.
* Android 5.x is no longer supported.
v2.6.0
* Android 14 is now supported.
* Android 4.x is no longer supported.
v2.5.1
* Fixed an issue where notes above the configured pitch range were detected.
* Improved accuracy with some instruments.
version 2.8.0
posted on 2026-08-19
v2.8.0
* Android 16 is now supported.
* Android 6.x is no longer supported.
* Improved stability when switching between apps.
v2.7.0
* Android 15 is now supported.
* Android 5.x is no longer supported.
v2.6.0
* Android 14 is now supported.
* Android 4.x is no longer supported.
v2.5.1
* Fixed an issue where notes above the configured pitch range were detected.
* Improved accuracy with some instruments.
v2.5.0
* Improved the concert pitch setting to support two decimal places.
version 2.7.0
posted on 2025-09-11
v2.7.0
* Android 15 is now supported.
* Android 5.x is no longer supported.
v2.5.1
* Fixed problem of detecting notes higher than the pitch range setting
* Fixed accuracy issues when used with some instruments
v2.5.0
* Improved Concert Pitch to include two decimal places
version 2.6.0
posted on 2024-08-22
v2.6.0
* Android 14 is now supported.
* Android 4.x is no longer supported.
v2.5.1
* Fixed problem of detecting notes higher than the pitch range setting
* Fixed accuracy issues when used with some instruments
v2.5.0
* Improved Concert Pitch to include two decimal places
version 2.5.1
posted on 2024-02-29
v2.5.1
* Fixed problem of detecting notes higher than the pitch range setting
* Fixed accuracy issues when used with some instruments
v2.5.0
* Improved Concert Pitch to include two decimal places
v2.4.2
* Improved signal level calculation algorithm
v2.4.1
* Improved accuracy of pitch determination at low volume
v2.4.0
* Octave Stretch function added. (paid version only)
* Improved accuracy in lowest and highest octaves
* Improved signal level calculation algorithm
version 2.4.2
posted on 2024-01-31
v2.4.2
* Improved signal level calculation algorithm
v2.4.1
* Improved accuracy of pitch determination at low volume
v2.4.0
* Octave Stretch function added. (paid version only)
* Improved accuracy in lowest and highest octaves
* Improved signal level calculation algorithm
v2.3.2
* Compliance with EU General Data Protection Regulation (GDPR)
* Improved stability
version 2.4.0
posted on 2024-01-05
v2.4.0
* Octave Stretch function added. (paid version only)
* Improved accuracy in lowest and highest octaves
* Improved signal level calculation algorithm
v2.3.2
* Compliance with EU General Data Protection Regulation (GDPR)
* Improved stability
v2.3.1
* Android 13 is now supported.
* Android 4.4 and below are no longer supported.
version 2.3.1
posted on 2023-08-30
Version 2.3.1
* Android 13 is now supported.
* Android 4.4 and below are no longer supported.
Version 2.3
* Setting dialogs can now be opened by tapping the indicator at the top of the screen.
* Negative transposition settings added for instruments in the lower and middle registers. (Paid version)
version 2.3.0
posted on 2022-03-23
Version 2.3
* Setting dialogs can now be opened by tapping the indicator at the top of the screen.
* Negative transposition settings added for instruments in the lower and middle registers. (Paid version)
Version 2.2
* Improved volume control of tuning fork and metronome. (Paid version)
* Added "25 cents" and "50 cents" to allowable pitch error setting
* Added "Very slow (40%)" and "Super slow (20%)" to rotor speed setting
* Fixed issue where changing theme didn't take effect immediately
version 2.2.2
posted on 2022-01-21
Version 2.2.2 (Paid version only)
* Improved volume control of tuning fork and metronome.
Version 2.2.1
* Added "25 cents" and "50 cents" to allowable pitch error setting
* Added "Very slow (40%)" and "Super slow (20%)" to rotor speed setting
* Fixed issue where changing theme didn't take effect immediately
Disclaimer
Official Google Play Link
We do not host A-Tuner on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
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