OpenTuner: Guitar & More
Custom Tunings & Metronome
Only for iPhone
Free · Designed for iPhone
iPhone
A professional guitar tuner with professional precision, custom tunings, and a built in metronome.
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:
- Guitar mode for automatic string-by-string tuning
- 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.
- Improved new Metronome (30–240 BPM, Tap Tempo, time signatures, accented downbeat).
- Added a live pitch trail and refined indicator behavior.
- Polished modal/UI consistency and overall performance improvements.
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
- 2.4 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.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jason Kalili