Tune your guitar in seconds — no download, no account, no cables. Works on any acoustic or electric guitar.
Free Forever
Four essential tools. No account, no ads, no limits. Open the app and play.
Real-time pitch detection with visual pitch bar. Configurable reference pitch from 415 Hz (Baroque) to 444 Hz, plus custom presets.
± 1 cent accuracy166 chords with interactive fretboard diagrams. Every root note, every quality — major, minor, 7th, maj7, sus, dim, aug, and more. Multiple voicings per chord.
166 chords30–300 BPM with tap tempo. Nine time signatures from 2/4 to 11/8, including compound meters. Speed trainer auto-increases tempo as you practice.
9 time signaturesCommon progressions in every key with audio playback. Hear how chords flow together and practice along in real time.
All 12 keys15 scales across all keys with interactive CAGED position boxes. See every pattern on the fretboard — pentatonic, blues, modes, and more.
15 scales · CAGEDDaily challenges and streak tracking keep you coming back. Build consistency without thinking about it.
Daily challenges
Six built-in presets from 415 Hz Baroque tuning to 444 Hz Bright, plus custom presets you create. See your cents offset at a glance. Microphone audio is processed entirely on-device — never recorded or transmitted.
Set a starting BPM and a target. Guitar Shark auto-increases your tempo by a configurable amount every N measures — so you build speed without thinking about it. Nine time signatures cover everything from waltz to odd-meter prog.
Structured lesson trees take you from identifying natural notes to recognizing intervals and chord qualities. Each lesson unlocks the next — building real musicianship progressively, not randomly.
Structured Learning
Not just reference material. Real lessons with progress tracking, quizzes, and sequential unlocking.
Notes, intervals, and chords — from natural notes to full quality recognition
8 lessons on key relationships, relative minors, and practical application
The universal chord language — read charts, transpose on the fly, slash chords
6 lessons on hearing and understanding the distance between notes
6 lessons on how chords are built from scales — triads, 7ths, extensions
7 lessons covering Ionian through Locrian — sound, feel, and application
Each course tracks completion, unlocks lessons sequentially, and shows your progress at a glance. You'll know exactly where you are and what's next — like a textbook that tracks itself.
Pricing
Most guitar apps charge for what we give away. Shark Mode unlocks the full experience.
$0 — forever
$9.99/mo or $59.99/yr Save 50%
Why Guitar Shark
Built by guitarists who got tired of paying $20/month for a tuner and some chord diagrams.
Most guitar apps lock the tuner behind a paywall or blast you with ads. Our core tools are free forever. No account, no ads, no limits.
Not sampled recordings. Guitar Shark uses physical string modeling to synthesize guitar tones in real time. Hear chords, scales, and patterns played back with actual string physics.
The scale explorer shows every position across the neck using the CAGED framework. Most apps ignore fretboard visualization entirely.
Microphone audio is processed on-device and never leaves your phone. No analytics, no tracking, no cloud. Your practice is your business.
FAQ