OpenTuner: Guitar & More
Custom Tunings & Metronome
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Fast, precise guitar tuning with pro metronome tools and support for other instruments. Clean UI, custom tunings, and reliable pitch detection for practice or stage.
OpenTuner is a lightweight, sleek, and professional guitar tuner built for players who just want to tune and play.
I made this app after getting frustrated with tuner apps packed with ads and subscriptions.
Why you'll love OpenTuner:
- Instrument mode for automatic string-by-string tuning
- Support for Bass, Banjo, and Ukulele
- Open mode for live note detection
- Multiple built-in tunings
- Create and save your own custom tunings
- Built in metronome
- No ads.
- No account required.
- No tracking.
Just open the app, tune, and play.
- Added ways to support OpenTuner
The developer, Jason Kalili, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jason Kalili
- Size
- 2.6 MB
- Category
- Music
- Compatibility
Requires iOS 18.5 or later.
- iPhone
Requires iOS 18.5 or later. - Mac
Requires macOS 15.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.5 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Keep It Going $9.99
- Support OpenTuner $3.99
- Quick Thanks $0.99
- Copyright
- © 2026 Jason Kalili