StringTrue: Guitar Tuner
Fast, precise, and ad-free
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Fast, accurate guitar tuning with automatic string detection, alternate tunings, chromatic mode, and clear sound, animation, and haptic confirmation. No ads or accounts.
StringTrue is a focused, easy-to-use guitar tuner. It starts detecting pitch as soon as you open it — no account, no ads, and no unnecessary setup.
Features:
- Standard, Drop D, Dsus4, Open G, Open D, and Half Step Down tunings
- Chromatic mode with note, octave, frequency, and cents
- Tap a string to lock its target; tap it again to return to automatic detection
- Sound, animation, and haptic confirmation when stable within ±2 cents
- Multiple A4 reference pitches with on-device preference saving
- Audio is analyzed in real time only on your device and is never recorded or uploaded
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 冲 张, 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
- 冲 张
- Size
- 617.5 KB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 5 more
- English, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Chong Zhang