Ultimate Mandolin Tuner

4.5
1.02K reviews
100K+
Downloads
Content rating
Everyone
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About this app

🎵 Precise, responsive and easy to use tuner for mandolin. Fine-tune your mandolin in seconds thanks to your mobile phone. Tuning your mandolin has never been so easy, and it's free!

All you need to do is launch the app, place the microphone from your smartphone near your mandolin, choose a tuning and get in tune!

With this app you'll immediately get access to 8 different tunings for your mandolin, including standard tuning, open G tuning, cross tunings and more.

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Full features
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✔️ Free and accurate electronic tuner : professional accuracy down to less than 1Hz precision
✔️ Huit different tunings included : Standard, Cajon, GDAD, Cross tuning 1, Cross tuning 2, High bass, Open A, Open G
✔️ Easy to use interface : no complicated menu, just pick up your mandolin and tune it
✔️ Auto detect which string is played : don't click on any button, play any string you want and let the tuner figure it out
✔️ Change the standard pitch reference frequency : default 440hz can be boring some time, change the pitch reference to anything between 420hz and 460hz. So you can turn it into a 432Hz tuner if you want!


If you think some tunings are missing and would like to see them added, feel free to send us an e-mail at mobile@tabs4acoustic.com and we'll add them.


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Please be careful!
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If you've never used an electronic tuner before, it's recommended that you watch some tutorials on youtube first (some tutorials will be included in the app in a future release). If used improperly you risk breaking strings on your instrument and that would make us feel bad :(
Updated on
Jun 18, 2025

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
Location, Personal info and 3 others
This app may collect these data types
Location, Personal info and 3 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
983 reviews
Philip Whittaker
July 28, 2022
I'm so glad that I found this app before I changed to a new set of strings. Tuning up was so much easier . It is so much better than a general purpose tuner. The string detection is excellent and always works unless you are way out, as in changing strings . I like the numerical readout of the current frequency of the string. Please go further and display the target frequency as well. The sensitivity is about right, but can be changed if desired. People who gave it a single star did not realise!
7 people found this review helpful
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Steve Cash
January 17, 2023
Not only does it work great, but it has presets so that you can tune to several common mandolin tunings, as well as a chromatic tuner setting. Extremely useful for someone wanting to learn mando. Both as a beginner and even as an intermediate trying to expand their horizons with alternate tunings. Absolutely love it, and the ads are really no bother, But I'm considering removing them just to support the people who made this. 🖤
12 people found this review helpful
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Richard Hess
March 24, 2021
Bummer, I wanted to give this a good review. When the app started playing a constantly repeating loop so I can't try to tune anything and strong arm me into buying it is in poor form. If you wanted to make it a paid app just make it a paid app.
10 people found this review helpful
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What’s new

1.11.6 :
- Fixed a small graphical bug
- Updated libraries
1.11.5 :
- Enabled Edge-to-edge display
1.11.4
- Fixed some stability issues
- Fixed some startup crash
1.11.3
- Updated dependencies
- Removed old unused dependencies
1.11.2
- Added some missing translations
- Improved loading times in onboarding screen
1.11
- New UI version, more streamlined and easier to use
- New Onboarding Screen for new users