Universal Tuner app icon

Universal Tuner

Tuner for guitar, balalaika, gusli, violin, ukulele and other instruments

Dmitry Pogrebnyak · ru.aterlux.guitartuner

3.5 out of 5 (2 ratings) 1M+ downloads v1.9 984.7 KB Android 4.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v1.9 (15)
Updated
Nov 16, 2025 (11 months ago)
APK size
984.7 KB
Requires
Android 4.0+ (API 14)
CPU support
Any (no native code)
Category
Music & Audio (app)
Listed since
Nov 15, 2021 (at least)
Permissions
2 (1 sensitive)
Website
aterlux.ru
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Universal Tuner is an app by Dmitry Pogrebnyak in the Music & Audio category, listed since at least November 2021. It has no native code, so it runs on any Android processor.

Since version 1.8, the APK grew from 845.2 KB to 984.7 KB. It asks for 2 permissions, 1 of them sensitive: record audio. It asks for the same permissions as version 1.8.35.

What's new in v1.9

Android 15 layout issue fixed

Description

From the listing uploaded by “appupdater”.

The tuner for stringed musical instruments. Absolutely free, no annoying ads! Fully autonomous and does not require access to the Internet, nor any other additional permits. This tuner allows to tune a variety of musical instruments: six- and seven-string guitar, bass guitar, gusli, balalaika, domra, lute, ukulele, koto, shamisen, violin, viola, cello, double-bass, kalimba, oud, banjo, guzheng, gayageum. Lightweight application with a highly efficient detection algorithm. Less memory and CPU usage, which makes battery life longer, Even on devices with weak CPU response still very smooth and fast, that allows for the tuning process to be precise and quick. This is not like a slideshow with a long delay, as in many other guitar tuner applications. Minimalist and informative design does not distract, making the tuning process easy and comfortable. High pitch detection accuracy (up to 3 cents). Works with wide range, allows to tune whole piano. The tuner's memory has preset of more than 90 kinds of tunings for instruments listed above, including, but not limited to: - Standard tune, as well as Drop D, Open C, Open D for a six-string guitar; - "Russian" and "Gypsy" tune for a seven-string guitar; - Academic diatonic tune for 15- and 17-string resonant gusli (Russian psaltery), as well as several kinds of "folk" tunes for the wing- and helmet-shaped psaltery, from 5 to 22 strings, including famous "Music Maker"/"Melody Lap Harp" ("Perepelochka"). - Academic and "folk" tunes for a balalaika; It allows you to set a pitch frequency for A4, other than 440 Hz. Tuner mode: - Auto (default) - The tuner will try to determine which string is tuned at the moment, changing the color of already tuned strings. - Fixed - quickly double-tap the button for the desired string, and the tuner will not automatically switch to another string. To return to automatic mode, press the button once again. - Chromatic - displays piano pad to select any note to tune. It can be used to tune up any instrument, even a piano. Chromatic mode is accessible from the drop-down list with the tunes names. Additional features: - Playing sound tone of selected string with a single tap; - The tone generator for tuning "by ear" (tap and hold. To switch off – short tap the same button again); - Beep when the tuning of the selected string reaches a predetermined frequency.

Version history

3 versions are listed, going back to v1.8.

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Nov 16, 2025.
  • Certificate issued to “Dmitry Pogrebnyak” This is the certificate of the Google Play version.
  • Same certificate as the 2 other versions checked

Store checks and file details

  • Developer signature verified Nov 16, 2025
  • Validated against Google Play Nov 16, 2025
  • Signed byCN=Dmitry Pogrebnyak, L=Samara, C=RU
  • Signing certificate (SHA-1)38:27:04:3A:4F:55:9E:D1:6F:75:AD:C7:9E:A9:83:FA:98:E7:69:36
  • File MD5acff0728b106422b7cd3ada7cc34197f
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (2)

Universal Tuner requests 2 permissions, 1 of them sensitive.

Required hardware & features

Universal Tuner APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Universal Tuner APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is acff0728b106422b7cd3ada7cc34197f.

Tags

More Music & Audio apps