Tuner - gStrings

Contains adsIn-app purchases
4.8
238K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
Learn more
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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.
Updated on
May 21, 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

4.8
229K reviews
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
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Aiden Chadwick
May 1, 2026
Incredibly accurate and useful. Can choose different namings of notes in other countries (though i don't change that setting but for review's sake), various other settings for string pitches, octaves, etc. I love that you can have it listen for the note and even play it monotone through the speaker, along with the dial for how close to the shown note it is. Wonderful tuner and it's not only useful for tuning guitars but when i compose to get the note in my head for the score. Totally recommend!!
1 person found this review helpful
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Bryan Adams
September 20, 2024
Introduced ads and trackers for no reason. I've had this app for years and they've never changed anything, now this. I would have tolerated ads since I've gotten so much use from it, but there's no way to deny trackers. It just keeps repeating the request with the option to accept or deny. This is a friggin frequency analyzer, you don't deserve my personal info.
6 people found this review helpful
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cohortor.org
September 24, 2024
Bryan, please update the app, and read the text shown before/after Google's Consent Dialog: 1. I do NOT collect PI (Google does), 2. you can disable personalization (follow the instructions in said text; Google makes this intentionally difficult). 3. you can disable ads altogether for the price of a beer. Or, just rate 1* as a thank you note. ;)

What’s new

Dependency and compatibility updates required by Google.