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Tuner

Tuner

Michael Moessner  |  Music Practice Tool

9 Downloads 13 Views v9.1 3.01 MB 4.1+
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 (3.01 MB)

Editor's Overview

Tuner is a music practice tool application developed by Michael Moessner, packaged as a single Android APK of version 9.1 weighing in at 3.01 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

  1. Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
  2. File size is a light 3.01 MB, so it installs quickly even on modest connections.
  3. This build is signed by "Michael Moessner" — always verify the developer name matches what's listed on the app's official store page before installing an update.
  4. After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
  5. We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

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.

Details

Versionv9.1
Size3.01 MB
DeveloperMichael Moessner
CategoryMusic Practice Tool
Packagede.moekadu.tuner
Android4.1+
Last UpdatedOct 29, 2026
Downloads9

Frequently Asked Questions

Is Tuner free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Tuner require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Tuner safe to install?
We link to the exact APK published by Michael Moessner. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Tuner?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Tuner

  1. Tap the Download APK button above and save the file to your device.
  2. Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
  3. Open the downloaded de.moekadu.tuner.apk file from your Downloads folder.
  4. Tap Install and wait for Android to finish.
  5. Open «Tuner» by Michael Moessner and grant only the permissions it actually needs.
  6. Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.