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Last updated on: 2026-10-07
Android Apps > Music & Audio > Guitar Tuner, Violin: Tuneo
App profile · Music & Audio · Data updated 2026-10-07
Guitar Tuner, Violin: Tuneo icon

Guitar Tuner, Violin: Tuneo

by A4tune Labs · Free · Version 8.0.6

“Great guitar tuner. Violin, bass, ukulele, viola & other instruments. Metronome.” the developer's tagline

Availability On Google Play since August 2016
Rating on Google Play
4.78/5
25,108 ratings
At a glance AppBrain's trailer of this app, made from our data
Rating
4.78
25,108 reviews
Total installs
4.3
million
Installs, last 30 days
19
thousand
Best rank
#72
Top Free, Music & Audio, Czech Republic
Last updated
May 10, 2026
8.0.6
AppBrain's verdict EstablishedPopularLoved by users

Guitar Tuner, Violin: Tuneo is popular, with 4.3 million installs. Users love it: 4.8 stars from 25,108 ratings. Its best ranking is #72 in Top Free, Music & Audio in Czech Republic.

Guitar Tuner, Violin: Tuneo is made and published by A4tune Labs. AppBrain is an independent app data site and isn't affiliated with A4tune Labs. The app name, icon, screenshots and description belong to A4tune Labs and are shown as published on Google Play.

About Guitar Tuner, Violin: Tuneo

“Great guitar tuner. Violin, bass, ukulele, viola & other instruments. Metronome.”

A4tune Labs, on Google Play

Pros & Cons

  • Two independent tuning algorithms for ultra-precise tuning.
  • Broad instrument support including guitar, violin, bass, ukulele, viola, cello, banjo, and shamisen.
  • Metronome, reference tones, and concert pitch options enhance practice and intonation.
  • User-friendly onboarding with built-in help and tutorials.
  • Some competitors emphasize Hz-level precision or piano-focused tuning that Tuneo does not explicitly market in the provided data.
  • Marketing could highlight more customizable tunings or range-specific features.
  • No explicit mention of paid 'pro' features in the data; users may look for advanced options elsewhere.

Guitar Tuner, Violin: Tuneo is a music & audio app developed by A4tune Labs.

Install Statistics

Guitar Tuner, Violin: Tuneo has been installed 4.3 million times. In the last 30 days, the app was installed 19 thousand times. It is ranked in the top 100 music & audio apps.

User Ratings

Guitar Tuner, Violin: Tuneo is rated 4.78 out of 5 stars. The rating is based on 25 thousand ratings.

App Information

Guitar Tuner, Violin: Tuneo is freely available from Google Play. The app size is 5.65 MB. The latest version available is 8.0.6. The last update was on May 10, 2026.

Technical Requirements

Guitar Tuner, Violin: Tuneo requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since August 2016.

Description by A4tune Labs (from Google Play)
Tuneo, also knows as "Guitar and Violin Tuner" is an extremely accurate instrument tuner for many instruments, like guitar, violin, bass, ukulele, viola, cello, banjo and shamisen, including many alternate tunings and variants.

Professionals appreciate its precision, beginners quickly learn to tune their instrument properly. The application is easy to use thanks to a combination of a chromatic and a strobe tuner on one screen, and provides the most accurate tuning you can achieve.

The chromatic tuner precisely detects the frequency of the tone played on your instrument, and shows it on the chromatic scale. The target pitches are highlighted on the scale, and you can see how much is the tone out of tune. When you get close enough, you can use the strobe tuner for fine tuning.

The strobe tuner helps you to achieve extreme accuracy. The pattern is moving to the right when the tone is too high, indicating that you need to tune down. When it is moving to the left, just tune up. The slower the pattern moves, the better is your instrument tuned.

If you are in doubt how to use the tuner, please read the built-in help, and see the examples of the tuning process there.

The strobe tuner uses an independent algorithm from the chromatic tuner. While the chromatic tuner uses the Fast Fourier Transformation, the algorithm in the strobe tuner is much closer to what you can find in oscilloscopes, and is computed directly on the GPU of your phone or tablet.

You can also use the tuner to tune by ear. The buttons at the bottom of the screen play the reference tones and you can tune accordingly. The tones are synthesized, and respects the setting of the concert pitch.

The tuner has been tested with many guitars, violins, basses, ukuleles, banjos and shamisens.

Features:

• Guitar tuner for beginners & pros
• Other instruments: Bass, ukulele, viola, cello, banjo, shamisen
• Advanced noise cancellation - works even with a metronome on
• The most favorite alternate guitar, ukulele, banjo and shamisen tunings
• Precision tuner suitable for professionals
• Plays reference tones
• First-start tutorial to understand the usage
• Built-in help to understand the app better
• Two independent tuning algorithms: chromatic tuner using the Fourier transformation and strobe tuner emulating the stroboscopic effect
• Quick, precise, and accurate tuner
• Concert pitch frequency setting
• Note naming: English, European, Solmization
• Equal temperament
• Quick access to settings to switch between instruments
• Send feedback: Record the string, e-mail it directly from the application, and we will add it to our built-in tests
• Tested with many instruments, recorded for use in a test suite that is regularly run before releases

This tuner is ideal for all violins, guitars, basses, ukuleles, violas, cellos and banjos. You will absolutely love the sound of your instrument, and the music you play!

Recent changes:
• Reworked metronome for ultimate accuracy.
• New setting: Choose between circular and rectangular strobe shape.
• Korean translations thanks to Taeyeong Kim.
Show more Show less
Price Free
Total installs 4.3 million
Recent installs 19 thousand
Rating 4.78 based on 25 thousand ratings
Ranking Highly ranked
Version 8.0.6
App size 5.65 MB
Number of libraries 16
Designed for Android 4.1+
Suitable for Everyone
Ads Contains ads

App Performance Report

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Screenshots

Guitar Tuner, Violin: Tuneo Screenshot 1 of 7
Guitar Tuner, Violin: Tuneo Screenshot 2 of 7
Guitar Tuner, Violin: Tuneo Screenshot 3 of 7
Guitar Tuner, Violin: Tuneo Screenshot 4 of 7
Guitar Tuner, Violin: Tuneo Screenshot 5 of 7
Guitar Tuner, Violin: Tuneo Screenshot 6 of 7
Guitar Tuner, Violin: Tuneo Screenshot 7 of 7
Screenshots by A4tune Labs, from the Google Play listing
Official page on Google Play

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Google Play Rating history and histogram

Rating history
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22K
1.6K
300
300
600

Installs over time

Installs over time
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Guitar Tuner, Violin: Tuneo has been installed 4.3 million times. Over the past 30 days, it averaged 640 installs per day.

Changelog of Guitar Tuner, Violin: Tuneo

Show changelog

Developer information for A4tune Labs

A4tune Labs

a4tunelabs@gmail.com

Legal name:

Address:

Phone number:

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Comments on Guitar Tuner, Violin: Tuneo for Android

★★★★★ 2 Kuetzpalin · May 12, 2026
Really enjoy using this app to tune my instruments and to see what the bpm is to some songs. Good app for musicians.
★★★★★ Graham Jackson · Jun 5, 2026
Does what it says been using for about 5 years always accurate.better than any headstock tuner.
★★★★★ Thriving Spirit · Jul 7, 2026
Used it for a violin and a guitar. Very easy to use. Love being able to see if I needed to raise or lower the tone.
★★★★★ Bob Cervera · Feb 14, 2026
Does what I need for tuning instruments.... would like to be able to save my favorite guitar tuning
★☆☆☆☆ Nelson Bernadinho · Mar 20, 2026
The best app, I can tune down my guitar at ease. Perfeito
★☆☆☆☆ David Williams · May 18, 2026
If it's not open source and has ads. It's just spyware
★★☆☆☆ Petras Petraitis · Sep 22, 2026
I purchased app. Tuner mostly works fine, but recently before the performance I had to tune my instrument and in the app apeared message that required consent of my personal data usage without ability to turn it off. Not nice!

Google Play Rankings for Guitar Tuner, Violin: Tuneo

Top rankings

Rank Country Category List
72 Czech Republic Music & Audio Top Free
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Ranking history in Czech Republic

Ranking history
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Technologies used by Guitar Tuner, Violin: Tuneo

12 permissions · 16 libraries
Subscribe to see full permission and library details

Frequently asked questions about Guitar Tuner, Violin: Tuneo

Is Guitar Tuner, Violin: Tuneo free?

Yes. Guitar Tuner, Violin: Tuneo is free on Google Play.

Is Guitar Tuner, Violin: Tuneo still available?

Yes. Guitar Tuner, Violin: Tuneo is on Google Play, and the last update we saw was on May 10, 2026.

Does Guitar Tuner, Violin: Tuneo contain ads?

Yes. Google Play lists Guitar Tuner, Violin: Tuneo as containing ads.

What Android version does Guitar Tuner, Violin: Tuneo require?

Guitar Tuner, Violin: Tuneo runs on Android 4.1 and higher.

How large is Guitar Tuner, Violin: Tuneo?

Guitar Tuner, Violin: Tuneo is 5.65 MB.

Is Guitar Tuner, Violin: Tuneo suitable for children?

Google Play rates the content of Guitar Tuner, Violin: Tuneo as suitable for everyone.

How many times has Guitar Tuner, Violin: Tuneo been installed?

Google Play lists 1,000,000+ installs for Guitar Tuner, Violin: Tuneo.

How do people rate Guitar Tuner, Violin: Tuneo?

Guitar Tuner, Violin: Tuneo scores 4.78 out of 5 stars, from 25,108 ratings on Google Play.

Who made Guitar Tuner, Violin: Tuneo?

Guitar Tuner, Violin: Tuneo was developed by A4tune Labs. It is listed in the music & audio category on Google Play.

What are the best alternatives to Guitar Tuner, Violin: Tuneo?

People looking at Guitar Tuner, Violin: Tuneo also look at these music & audio apps: Tuner T1, DaTuner: Tuner & Metronome, Tune!It Lite, Fine Tuner - Precise & Fast, Guitar Tuner & AI Music Studio.

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Fine Tuner - Precise & Fast icon Fine Tuner - Precise & Fast
Guitar Tuner & AI Music Studio icon Guitar Tuner & AI Music Studio
Noteworthy Tuner icon Noteworthy Tuner
TuneIt - Instrument Tuner icon TuneIt - Instrument Tuner
Instrument Tuner Pro icon Instrument Tuner Pro
Overview Alternatives History Reviews Rankings Technology
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