G-Tuner

nobapp

In-app purchases

About this app

Play a string and instantly see the target note and how far your pitch is off.
G-Tuner is a simple, accurate tuner designed to deliver stable readings even when your surroundings are not quiet.

Pitch detection optimized for microphone input helps reduce the effects of background noise and gives you fast, responsive feedback. The interface is easy to understand for beginners, with additional controls for players who want to fine-tune every detail. Whether you are practicing at home or getting ready to perform, G-Tuner helps you spend less time tuning and more time playing.

KEY FEATURES
• Strings mode shows the target note and tuning status for each string at a glance
• Animation and alert sound let you know when a string is in tune
• Adjustable reference pitch from 390 to 490 Hz in 1 Hz steps
• DOWN / CAPO settings from -5 to +7 frets
• Support for guitar, bass guitar, banjo, mandolin, ukulele, and more

MORE CONTROL WHEN YOU NEED IT
Paid options unlock the following features:
• Chromatic mode identifies the closest note to the sound you play
• High-precision mode lets you adjust the in-tune tolerance
• Faster in-tune detection shortens the time required to confirm that a string is in tune
• Detailed pitch information shows the detected pitch, target pitch, and pitch error
• Alternate guitar tunings and presets for a variety of instruments
• Custom tunings with support for up to 10 strings

Paid options are available as a one-time purchase or subscription. The subscription includes a 30-day free trial.

PITCH DETECTION SPECS
• Accuracy: ±0.1 cents (at 440 Hz)
• Range: E0 to E7

Get in tune faster and get back to playing with G-Tuner.

Ratings and reviews

I updated this app but the new version is unstable and does not respond correctly to the sound of the strings. When I tried to tune a string, the indicator kept going flat and sharp. I have reverted back to the older version 1.1.1

Awesome simple to use tuner! I have several on my phone and I have numerous actual clip on tuners and this one is easy to see (I've only got use of one eye). My dad even said it's one of the best tuners he's used as well and he's in his early 60s!

Finally an app without subscriptions, ads or ridiculous permissions/ data collection. Best tuner app I've used!

What’s new

v1.7.0
* Added support for Android 16.
* Ended support for Android 6.x
* Improved stability
v1.6.0
* Added support for Android 15.
* Ended support for Android 5.x.
v1.5.2
Added support for Android 14.
v1.5.1
Fixed an issue where the wrong string was selected in Strings mode.
v1.5.0
* Improved pitch detection accuracy.
* Fixed bugs.
v1.4.1
* Added support for Android 13.
* Ended support for Android 4.4 and earlier.