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OpenTuner: Guitar & More

OpenTuner: Guitar & More

Custom Tunings & Metronome

13 ratings
14 reviews
🔧 Utilities
🎵 Music
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 20, 2026
  • July 13, 2026

Features

Developer

Jason Kalili
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🧾$0.99 - $9.99
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❓5 answered
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About

This app offers a professional and ad-free tuning experience for various instruments. It features automatic string tuning, support for multiple instruments, and the ability to create custom tunings. A built-in metronome is also included for practice.

✓Automatic string-by-string tuning
✓Support for Bass, Banjo, Ukulele
✓Live note detection (Open mode)
✓Create and save custom tunings
✓Built-in metronome
✓No ads or tracking
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What's New in OpenTuner

1.6

July 13, 2026

- Updated Icon

3

In-App Purchases

$0.99

Quick Thanks

A small one-time thank-you to support OpenTuner.

User reviews

Most RecentHighest RatedLowest Rated

Amazing tuner

Such an awesome tuner. No nonsense, no fuss, NO ADDS!! Thank you for the great app!
E-TenE-Ten

Thanks for trying OpenTuner!

Hope you love it. Please reach out if you have any feature requests!
Jason KaliliJason Kalili

Simple, no fuss tuner

Hands down the best looking guitar tuner on the App Store. I’ve been using this app for a few weeks now and deleted all the other tuner apps I installed. The built-in metronome is also great. Best of all, there are no annoying pop-ups or ads!
EarthlyAzureEarthlyAzure

Best tuner out there

This guitar tuner has changed the game for me!!! Made tuning my guitar so quick and easy
lkbuggylkbuggy

Favorite tuner app

It’s free/ad free and easy to use. Works really well highly recommend.
Sevan LSevan L
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FAQ

What does OpenTuner do?

OpenTuner is a professional and lightweight application designed to help you tune your instruments quickly and accurately. It offers automatic string tuning, support for various instruments like guitar, bass, banjo, and ukulele, and the ability to create and save your own custom tunings. It also includes a built-in metronome for practice.

What are the key features of OpenTuner?

Key features include an instrument mode for automatic string-by-string tuning, support for multiple instruments beyond guitar, an 'Open mode' for live note detection, multiple built-in tunings, and the ability to create and save custom tunings. It also boasts a built-in metronome and is completely free of ads and tracking.

Is OpenTuner free to use?

Yes, the core functionality of OpenTuner is free to use, and it explicitly states 'No ads.' The application does mention in-app purchases, suggesting that some advanced features or customization options might be available for purchase.

What instruments can I tune with OpenTuner?

OpenTuner supports tuning for guitar, bass, banjo, and ukulele. It offers an instrument mode for automatic string-by-string tuning, making it versatile for a range of stringed instruments.

Can I create my own tunings in OpenTuner?

Yes, a significant feature of OpenTuner is its ability to create and save your own custom tunings. This allows for greater flexibility for musicians who use non-standard tunings for their instruments.