Guitar Tuner Toolbox

250 reviews
Content rating
Everyone
50K+
Downloads
Content rating
Everyone
Learn more
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About this app

Guitar Tuner Toolbox is the perfect companion to every guitarist, beginner or advanced alike. You will find a powerful guitar tuner, an advanced metronome and an extensive chord library—all for free.

🎸 Guitar Tuner 🎸
Guitar Tuner Toolbox offers the most accurate tuner for 6-string and 7-string guitars, bass guitars, ukuleles, and more.
It uses the microphone from your smartphone to automatically detect the strings you're trying to tune and will guide you to a perfect tuning thanks to an easy to use interface.
The advanced algorithms used will guarantee you the highest precision you can find in a guitar tuner, making sure you will always play in tune no matter what.
You will have access to many popular tunings, such as Drop D tunings, open D and open G tunings, DADGAD and many more. And of course, you can stick with standard tuning if you want.
If that's not enough, the chromatic mode allows you to freely tune your guitar any way you want.

⏱️ Metronome ⏱️
Master your rhythm with our feature-packed metronome. Guitar Tuner Toolbox is therefor ideal for beginner guitar practice.
You will be able to adjust the tempo to any bpm you want from 20 to 300.
A tap tempo feature will allow you to quickly match the tempo of any song you want.
Many subdivisions like eight notes, triplets, sixteenth notes and more are available to practice complex rhythms.
Mixing two different beat will turn it into a polyrhythm metronome, giving you a perfect way to practice and master those complex polyrhythms.
For the shred guitarists out there, our speed training option allow you to gradually increase the tempo and build up your playing speed on any exercise you want.

🎼 Chord Library
Guitar Tuner Toolbox also includes a comprehensive chord library, featuring over 2000 chord charts to improve your musical knowledge.
All the chords you might want, major, minor, diminished, augmented etc... are available.
You will find detailed fingering for each chords, allowing you to easily play them on your fretboard.
Learn the notes from every chords with our detailed chord charts, and understand the intervals that makes up those chords.

Why Choose Guitar Tuner Toolbox?
Guitar Tuner Toolbox is your go-to app for guitar tuning, rhythm training, and chord reference. Here’s why musicians love it:
- Completely Free: All features are free—no hidden costs.
- User-Friendly Interface: Easy to navigate for all skill levels.
- High Precision: Trust our tuner for perfect pitch.
- Versatile Tools: Comprehensive solutions for tuning, rhythm, and chords.

Download Guitar Tuner Toolbox Today!
Take your music to the next level with Guitar Tuner Toolbox. Tune your guitar, practice with the metronome, and explore new chords—all in one app. Download now and start playing guitar with confidence!

Guitar Tuner Toolbox: Your ultimate guitar tuner, metronome, and chord library app.
The ultimate guitar tuner, metronome, and chord library app for guitar players.
Updated on
11 Mar 2025
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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, Financial info and 3 others
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

237 reviews
Magnificent Honky
6 May 2020
The tuner is a little glitchy. Sometimes, it displays the wrong frequency, by a lot. Try to tune the high "E", for example, get it close by ear, but the sound registers a couple of steps lower. This type of glitch makes the "auto" feature unusable. But, it doesn't always glitch. Also, there is no preset for Open E tuning.
15 people found this review helpful
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LondonAdagio - Apps for musicians, by musicians
8 May 2020
Thank you for the review! I'll add the open E tuning in a future release. As for the glitches, it's hard to fix because of the wide range of devices that are out there that I don't have access to. But I'll keep working on improving accuracy. In the meantime, make sure you play with a clean tone and in a quiet environment for best results.
Xion
28 May 2022
Great tool! It does what it's supposed to do and more. The different functions are very useful and it's free. That sets this app apart from many of the other ones. This is my favourite guitar app, however the one thing to me that could really be improved is the user interface. It's simple and it works but it just look too bland, unrefined and like there's not much effort put into making it look great. I'd love to see a more polished look to it. I think it'd make the user experience a lot better.
7 people found this review helpful
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A Google user
5 March 2020
This is a very good app. Other apps have so many unwanted things and along with many other instruments. Its perfect, just what I wanted, a metronome, a tuner , a chord book. Thanks a lot for reading and go for this app.
11 people found this review helpful
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LondonAdagio - Apps for musicians, by musicians
5 March 2020
Thank you very much for your review! If there's anything I can do to deserve that fifth star, please write to me at londonadagio@gmail.com.

What's new

♩ 1.10.8
♪♪ Tuner works again in airplane mode
♩ 1.10.7
♪♪ Fixed an issue with background play notification
♩ 1.10.6
♪♪ Fixed a bug that made the metronome crash when using very low tempo
♪♪ Added Standard B tuning (not sure)
♩ 1.10.5
♪♪ Fixed a bug that made the metronome notification not working
♩ 1.10.4
♪♪ Fixed a bug in the metronome crashing with certain configurations
♩ 1.10.3
♪♪ Fixed a bug with navigation
...
♩ 1.10.0
♪♪ New polyrhythm mode in the metronome
Content rating
Everyone
Learn more

App support

About the developer
Maxime Kawczynski
londonadagio@gmail.com
25 Rue de Mon Désert 54000 Nancy France