Guitar Tuner Guru

Fast & accurate guitar tuner. Tune your guitar in any tuning in seconds!

Tabs4Acoustic · com.t4a.guitartuner

5.0 out of 5 (1 rating) 5M+ downloads v2.17.7 23.6 MB Android 6.0+ PEGI 3 · Everyone

Download APK 23.6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.17.7 (6006)
Updated: Aug 27, 2026 (1 month ago)
APK size: 23.6 MB
Requires: Android 6.0+ (API 23)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Music & Audio (app)
Listed since: Dec 11, 2020 (at least)
Permissions: 14 (2 sensitive)
Website: tabs4acoustic.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Guitar Tuner Guru is an app by Tabs4Acoustic in the Music & Audio category, listed since at least December 2020. 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.

Since version 2.16.2, the APK shrank from 26.8 MB to 23.6 MB and the minimum Android version rose from 4.4 to 6.0. It asks for 14 permissions, 2 of them sensitive: record audio and modify shared storage. It asks for the same permissions as version 2.17.6. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v2.17.7

2.17.6 : - Fixed a small graphical bug - Updated libraries 2.17.5 : - Enabled Edge-to-edge display 2.17.4 - Fixed some stability issues - Fixed some startup crash 2.17.3 - Updated dependencies - Removed old unused dependencies 2.17.2 - Added some missing translations - Improved loading times in onboarding screen 2.17 - New UI version, more streamlined and easier to use - New Onboarding Screen for new users

Description

From the listing uploaded by “appupdater”.

Get the world’s most precise guitar tuner app, Guitar Tuner Guru. Fast and accurate tuning across many instruments including guitar, bass, ukulele, violin, banjo, and more. Thanks to your mobile's built-in microphone, tuning your favorite instrument has never been so easy! Don’t settle for less, download the ultimate guitar tuner today! Why you'll love it: • Get perfect guitar tuning anytime, anywhere • Professional accuracy designed for beginners and pros • Supports many instruments • Chromatic tuner included • Tune by ear with professional guitar and instrument samples • Hundreds of alternative guitar tunings available • String detection mode • Change the reference frequency to get a 432Hz guitar tuner Guitar Tuner Guru works by analyzing the signal from your smartphone’s microphone. It will work with any electric guitar, acoustic guitar, or any other string instrument you want with no cable needed. The interface shows you in real-time if you are too sharp or too flat and reacts to every change you make. It’s the perfect tuning app for beginners and pros alike. List of included tuners: • Guitar tuner: 6 strings, 7 strings, 8 strings, acoustic and electric • Bass: 4, 5, and 6 string • Ukulele • Banjo: 4 and 5 string • Mandolin • Charango • Violin and fiddle • Balalaika • Chromatic tuner for any other needs Available guitar tunings in Guitar Tuner Guru include Standard tuning, Open D, Open C, Open G tunings, DADGAD tuning, Drop D, Drop C, Drop A, and many more. Enjoy and stay tuned! If you have any feedback, questions, or if you think some tunings or instruments are missing and would like to see them added, feel free to contact us at [email protected]

Version history

5 versions are listed, going back to v2.16.2. Since v2.17.5 it requires Android 6.0+.

v2.17.7 LATEST Aug 27, 2026 23.6 MB TRUSTED v2.17.6 Apr 24, 2026 23.7 MB TRUSTED v2.17.5 Apr 6, 2025 23.6 MB TRUSTED v2.17.4 Dec 12, 2025 23.5 MB TRUSTED v2.16.2 Aug 29, 2023 26.8 MB TRUSTED

All 5 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 27, 2026.
Same certificate as the 4 other versions checked

Store checks and file details

Developer signature verified Aug 27, 2026
Validated against Google Play Aug 27, 2026
Signed byOU=T4A, C=FR
Signing certificate (SHA-1)07:4A:44:8D:AD:90:75:59:00:12:33:43:CC:4C:58:16:D0:74:41:65
File MD50c2ca8e6ae407c9814300f0bd78c6b14
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 (4 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (14)

Guitar Tuner Guru requests 14 permissions, 2 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
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
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.t4a.guitartuner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Microphone android.hardware.microphone
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Guitar Tuner Guru APK: questions and answers

Is there a version of Guitar Tuner Guru for older Android phones?

The current version needs Android 6.0 or later. Version 2.17.4 is the newest listed build that installs on Android 5.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.17.4 · All versions

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 Guitar Tuner Guru free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Guitar Tuner Guru 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 4 other versions checked. After downloading, check that the file's MD5 is 0c2ca8e6ae407c9814300f0bd78c6b14.