Struno: Tuner & Metronome App

Struno is your all-in-one instrument companion: precise tuner, powerful metronome, interactive chords, and scales — everything you need to practice, learn, and perform.
Whether you play guitar, bass, ukulele, banjo, or mandolin, Struno helps you stay in tune and in time.

Accurate Tuner
Fast, real-time pitch detection with smooth visual feedback.
• Chromatic mode
• Instrument-specific tuning modes
• Animated gauge with organic visual feedback
• Particle-based tuning indicator
• Reference tone (pitch pipe)
Supports multiple instruments including 6/7/12-string guitar, bass, ukulele, banjo, and mandolin.

Chords Library
Explore chords across multiple instruments with clear, readable diagrams.
• Guitar, Ukulele, Banjo, Mandolin
• Multiple chord voicings
• Capo transposition
• Built-in chord progressions:

I–IV–V–I

ii–V–I

12-bar blues
• Select key and practice instantly
Perfect for songwriting, practice sessions, and live performance.

Scales & Modes
Visualize scales directly on the fretboard.
Includes 12 scales and modes:
Major, Minor, Pentatonic, Blues, Dorian, Mixolydian, Phrygian, Lydian, Locrian and more.
Learn patterns, improvise with confidence, and expand your musical vocabulary.

Advanced Metronome
Stay locked in with a flexible, musician-focused metronome.
• 40–240 BPM
• Tap tempo
• 4 time signatures
• 4 subdivisions
• 6 click sounds
• Tempo Trainer (auto-increase BPM)
• Genre rhythm presets:
Rock, Jazz, Bossa Nova, Flamenco, and more
Built for serious practice and real progress.

Supported Instruments
• Guitar (6, 7, 12-string)
• Bass & 5-string Bass
• Ukulele & Baritone Ukulele
• Banjo
• Mandolin

Struno offers optional auto-renewable subscriptions that unlock advanced features and full access to the music toolkit.
Subscription details, pricing, and free trial (if available) are shown inside the app before purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings.

Privacy Policy:
https://plane4bear.com/struno/privacy
Terms of Use:
https://plane4bear.com/struno/terms