In-app purchases
130 reviews
Content rating
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About this app

"Playing the guitar is fun, but tuning it is a pain ..."
G-Tuner will surely be the best tuner for players who think so.

In many tuner applications so far, the indication tends to be unstable due to noise, which prevents the smooth tuning.
G-Tuner greatly reduces the influence of noise by our pitch detection technology specialized for the microphone input, and it makes players free from the frustration.
And also about basic performances such as accuracy and responsiveness of indication, we have achieved a high level that can be used in professional applications.
While the interface is simple enough even for beginners, it also offers some practical options to meet advanced requirements.

### Specification ###
- Supported instruments: Any plucked string instruments such as Guitar, Bass guitar, Banjo, etc.
- Pitch accuracy: ±0.1 cents (at 440 Hz)
- Pitch range: E0 to E7 (Note: 4th str. of bass = E1, 1st str. of guitar = E4)
- Calibration range: 390 to 490 Hz (1 Hz step)
- FLAT / CAPO (shift tuning): -5 to +7 frets
- Display modes:
    - Strings mode
    - Chromatic mode*
- Tolerance setting:
    - MED (in-tune = ±5.0 cents)
    - HIGH* (in-tune = ±2.5 cents) (The value is selectable)
- Altered tuning*:
    - In addition to preset data for guitar, bass guitar, banjo, mandolin, ukulele
    - user-defined tunings can be added.
- Other features:
    - In-tune notification
    - Tuning state indication for each string
    - Detailed pitch information* (detected pitch, target pitch, pitch error)

* these features are advanced options
We offer a free trial period of 30 days for these options.
Updated on
Mar 23, 2022

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.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted
130 reviews
Bee S
July 5, 2021
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
18 people found this review helpful
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July 21, 2021
We have identified the part that may have caused the problem and fixed it. The version 1.3.0 is now available. We would appreciate it if you could try it and give us feedback. Thank you
Димитър Ляпчев
January 23, 2023
I love the app, simple, cool design, useful hz feature.
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A Google user
April 9, 2019
I've tried maybe 10 guitar tuner apps and this one is the best so far. better than da tuner, gstrings, fender.
32 people found this review helpful
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What's new

Version 1.4.0
* Extended the range of string numbers. (1-10 strings)
* Fixed the problem that the ♯ sign is not displayed.
* Compatible with Android 12.
* Improved stability.
* Bug fixes
Version 1.3.1
* Fixed issue of in-app purchase process
* Fixed an issue that caused app to crash while operating in the tuning management screen