PROTUNE
Dark Castle Group, LLC Music iPhoneiPadiPod touch
PROTUNE is a free Music app for iPhone and iPad by Dark Castle Group, LLC. Rated 5.0/5 from 3 ratings. Requires iOS 15.1. Updated July 26, 2026.
- Rating
- 5.0
- 3 ratings
- Price
- Free
- on the App Store
- Size
- 98 MB
- Age 4+
- Updated
- Jul 26
- 2026 · v1.0.4
Screenshots
About PROTUNE
PROTUNE is a professional-grade tuner designed by Legendary Guitarist Dj ASHBA for guitarists and bassists who demand precision and style. PRECISION TUNING • Real-time pitch detection with studio-quality accuracy • Customizable A4 reference pitch (430-450 Hz) • Adjustable sensitivity for any environment INSTRUMENTS • 6-String Guitar • 7-String Guitar • 12-String Guitar • 4-String Bass • 5-String Bass • 6-String Bass 14+ TUNING PRESETS • Standard • Drop D • Drop C • Open G • Open D • DADGAD • Half Step Down • Full Step Down • And more... REFERENCE TONES • Play reference tone for any string • Clean and Dirty sound modes • Loop playback option THREE VISUAL SKINS • Classic - Sleek dark interface • Distressed - Grungy rock aesthetic • Crow - Electric crow silhouette THREE METER STYLES • Arc LED - Modern curved display • Classic - Traditional ruler style • Strobe - Professional strobe tuner Privacy Policy: https://protuneapp.com/privacy Terms of Use (EULA): https://protuneapp.com/terms Support URL: https://protuneapp.com/support
What’s new
Version 1.0.4 · Updated July 26, 2026
Backend infrastructure update for improved reliability.
App privacy
The developer, Dark Castle Group, LLC, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| PROTUNE | 5.0 / 5 (3 ratings) | Free | July 26, 2026 | |
| Tuner by Clearbeat | 5.0 / 5 (3) | Free | Jun 8, 2026 | Compare |
| Retune - Guitar & Bass Tuner | 5.0 / 5 (4) | Free | Aug 9, 2026 | Compare |
| PROtune: Guitar Tuner & Chords | – | Free | Aug 20, 2026 | Compare |
| FREEQUENCY Tuner | 5.0 / 5 (2) | Free | Jul 17, 2026 | Compare |
| Verity Tuner | 5.0 / 5 (2) | Free | Jul 23, 2026 | Compare |
| BassEducation Tuner | 5.0 / 5 (3) | Free | Oct 27, 2026 | Compare |
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