OpenTune: Guitar Tuner
Fast, Accurate & Simple Tuning
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
The tuner that just works. No clutter, no ads interrupting your practice — open it and start tuning.
Are you tired of complicated tuning apps with endless settings and ads? Meet OpenTune, the most straightforward guitar tuner designed for musicians who just want to play. Whether you are a beginner or a professional, OpenTune provides the precision you need with the simplicity you want.
Why OpenTune?
- Instant Recognition: Just open the app and start plucking. Our advanced chromatic tuner detects the pitch instantly.
- High Accuracy: Engineered for professional-grade tuning precision.
- All Instruments: Perfect for acoustic guitar, electric guitar, bass, and ukulele — plus violin and mandolin.
- Alternate Tunings: Drop D, Drop C, Open G/D/E, half-step and full-step down, and more, ready to go for guitar, bass, and ukulele.
- Clean Interface: No unnecessary buttons. Just a clear, visual tuning guide.
OpenTune stays out of your way so you can get back to playing.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved tuning accuracy and stability, added more tunings (5-string bass, violin/mandolin, and more alternate guitar tunings), a cleaner tuning display with cents readout, and general performance improvements.
The developer, Ali Eren SEVINC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ali Eren SEVINC
- Size
- 40.5 MB
- Category
- Music
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Ali Eren Sevinc