Chromatic Tuner

Accurate and fast chromatic tuner with wide range covering C0(16Hz) - B8(7902Hz)

Emil Doležal · com.grodronos.tuner

Not rated yet 50K+ downloads v5.0.0 6 MB Android 5.0+ PEGI 3 · Everyone

Download APK 6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v5.0.0 (236)
Updated: Nov 11, 2025 (11 months ago)
APK size: 6 MB
Requires: Android 5.0+ (API 21)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Music & Audio (app)
Listed since: Nov 22, 2021 (at least)
Permissions: 13 (1 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Chromatic Tuner is an app by Emil Doležal in the Music & Audio category, listed since at least November 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 13 permissions, 1 of them sensitive: record audio. The app can read the advertising ID that ad and analytics services use.

What's new in v5.0.0

5.0.0 - sound pressure (decibel) graph added, design and performance improvements added 4.1.0 - refresh rate settings added 4.0.0 - landscape mode, 1s audio signal length and more improvements added 3.1.0 - frequency precision settings added 3.0.0 - 4 x faster tone fix, maximum audio sample frequency used 2.2.0 - tone visibility timeout added 2.1.1 - better "A4 Calibration" dialog 2.1.0 - frequency (power) spectrum enhancements 2.0.0 - A4 Calibration added, Reset Settings added

Description

From the listing uploaded by “appupdater”.

Accurate and fast chromatic tuner with wide range covering C0(16Hz) - B8(7902Hz). All music instruments are supported even human voice. Application is plotting sound waves and its frequency (power) spectrum in real-time. Features: * Tuning modes * Real-time waves plotting options * Sensitivity calibration * A4 calibration * Frequency precision settings * Refresh rate settings * Note-naming convention settings Tuning modes: * Guitar (E2,E4) * Violin (G3,E5) * Viola (C3,A4) * Cello (C2,A3) * Bass (E1,G2) * Piano (A0,C8) * Human Voice (C2,D6) * Max Frequency Range (C0,B8) Pro version contains no ads or nag screens.

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Nov 11, 2025.
Certificate issued to “Emil Dole?al” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Nov 11, 2025
Validated against Google Play Nov 11, 2025
Signed byCN=Emil Dole?al
Signing certificate (SHA-1)9A:29:34:BD:08:16:71:F6:32:43:33:18:34:4B:E5:2B:6F:9D:25:54
File MD598645fdade172abf1ca74a47af344860
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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (13)

Chromatic Tuner requests 13 permissions, 1 of them sensitive.

Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) com.grodronos.tuner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Microphone android.hardware.microphone

Chromatic 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 Chromatic 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. After downloading, check that the file's MD5 is 98645fdade172abf1ca74a47af344860.