Tuner - gStrings

Name: Tuner - gStrings
Availability: InStock
Rating: 4.772637844085693 (237378 reviews)
Author: cohortor.org

cohortor.org

Contains adsIn-app purchases

4.8

237K reviews

Everyone

10M+

Downloads

Everyone

Learn more

About this app

gStrings is a chromatic tuner application measuring sound pitch and intensity. This is the ad supported version.

It will let you tune any musical instrument (violin, viola, violoncello, bass, guitar, piano, wind instruments, your own voice/singing).

Features include:
1. multiple built-in instruments and tunings,
2. support for user-defined custom tunings,
3. a long list of built-in temperaments (just, pythagorean, meantone, comma, etc.),
4. support for user-defined custom temperaments,
5. orchestra tuning (shifting/redefining tone frequencies),
6. pitch pipe,
and many more.

If you were looking for a guitar tuner, try it!

(*) the INTERNET permission is used for ads only.

(**) most of the historic temperaments were included courtesy of NetCat AG.

gStrings - a chromatic tuner for the guitar, violin, or any other instrument.

Updated on

Jul 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

This app may share these data types with third parties

Device or other IDs

No data collected

Learn more about how developers declare collection

Data is encrypted in transit

Ratings and reviews

229K reviews

Thomas Kassebaum

July 10, 2026

I have been using this app basically since Android devices came out. Something messed up with the new update and it doesn't work anymore. The dial doesn't move, it doesn't sense notes. This is THE essential android app that I have always installed on every phone I've had. Please fix the bug so I can keep using it!

1 person found this review helpful

cohortor.org

July 11, 2026

Thomas, please follow the instructions under Settings -> Troubleshooting. If selecting the "chromatic" instrument, and trying the 3 audio input source options would not resolve your issue, please send an email to gstrings_at_cohortor.org. Thank you for helping making this app better.

Scott Culver

June 21, 2026

A bit frustrated. I was a paid user. upgraded and the upgrade did not automatically pick that up. Uninstalled the old version then realized I was getting adds. Go into settings and I had to do something before I uninstall the old. Now I can't reinstall the old version to address that. So now I have to decide if I pay more money or just uninstall it. I've recommended this to many people so it is frustrating to be treated this way.

1 person found this review helpful

cohortor.org

June 21, 2026

Scott, sorry to see this; please send an email to gstrings_at_cohortor_org. I am confident we can quickly resolve this unintented experience. Please start with cohortor.org/gstrings/faq.html (and finding the Google Play Order ID in your mailbox to identify if you have paid for the separate paid app, or disabled ads in the free app).

Jon Pember

May 9, 2026

Great tuner app! Works better than any stand-alone digital tuner I've used. Very good at picking up the string I'm tuning without getting thrown off by background noise. Simulated analog and digital display at the same time allow me to dial in pitch to a fraction of a cent. Also can tune chords well. Most importantly, no pop-up or overly distracting ads!

1 person found this review helpful