Made for every focused practice
Tune, keep time and find chords in one place. GuitarTool brings professional practice essentials into a calm, intuitive interface.
That is why tuning, rhythm and chords live in one clear practice flow. No ads, no feeds, no login wall—open the app and start playing.
Three core tools, one complete flow
Set 20–500 BPM, time signatures, note values, accents and subdivisions. Combine timers, swing, progressive tempo and practice presets into a routine that is truly yours.
Seven instrument families and a wide range of alternate tunings, with cents, signal strength and stability feedback. Audio is processed live on your device—never saved or uploaded.
Explore 855 chord names for both guitar and ukulele, with 19,244 fingerings in total. Move, edit, identify and hear a voicing, then save or share the exact shape as a clear chord card.
The real preview keeps the visible chord, muted strings, fretted notes and higher-position starting fret. Once it looks right, save to Photos or share the image.
Full product tour in 36 seconds
The landscape edit is designed for desktop and larger screens; mobile automatically receives the English portrait edit. It covers tuning, rhythm, chord cards, widgets and the multi-device experience.
Across your devices · themes & widgets
Themes & appearance
Sky, Night, Forest and Graphite are included with the app. Your choice stays on the device and needs no account or cloud profile.
Home Screen widgets
Small, medium and large. Change tempo and time signature, play, pause or tap in a tempo—right from your Home Screen.
Tune, keep time and find chords without switching apps. GuitarTool brings live tuning, flexible rhythm training, chord cards, Apple Watch and Home Screen widgets into one fully offline practice flow.
↗Reach for iPhone, see more on iPad, or start the beat from Apple Watch. Audio can keep going when the wrist lowers or the display dims, so your hands return to the instrument.
Privacy by design
GuitarTool does not collect, sell or share personal information. Tuner audio is processed live on your device and released when tuning stops.
Follow your system language or choose anytime in the app.
Free practice resources
Use your microphone for private, real-time note, frequency and cents feedback.
Open the tool →02Start with 20–500 BPM, tap tempo and one to twelve beats per bar.
Open the tool →03Explore standard, Drop D, DADGAD and open tunings with private on-device audio.
Read the guide →04Begin with 50 essential chords, each with several clear positions.
Browse chords →05Learn 50 common shapes in standard high-G GCEA tuning.
Browse chords →06Turn the current guitar or ukulele voicing into a card you can preview, save or send.
Explore chord cards →07Control tempo and meter from your wrist while audio continues when the display dims.
Explore the watch metronome →08A teacher-ready workflow for choosing, checking and sending one exact voicing.
Read the teaching guide →09How sample-clock timing, display lifecycle and route recovery work together.
Read the engineering story →10Tap the main pulse, reject uneven input and check half-time or double-time results.
Read the guide →11Move from straight eighths to swing and shuffle while gradually removing click support.
Read the guide →12Increase speed with small BPM steps, clean repetitions and a clear fallback rule.
Read the guide →13Tune all six EADGBE strings and make sense of cents, attack and stable sustain.
Read the guide →14Compare open and higher voicings, then edit, identify and hear the exact shape.
Find a fingering →Common questions
No. GuitarTool’s core features work entirely offline, with no registration, sign-in or cloud profile.
Never. Microphone audio is used only for live, on-device pitch detection. It is not saved as a file or uploaded to a server.
GuitarTool adapts to iPhone and iPad, and includes an Apple Watch metronome plus three sizes of interactive Home Screen widgets. Watch audio can continue when the wrist lowers or the display dims.
Yes. The tuner includes GCEA modes, and the chord library includes a complete set of ukulele chord names and multiple fingerings.
Yes. Preview the current chord card, then save it to Photos or send it with the system share sheet. The image does not force an App Store link.
GuitarTool for iPhone · iPad · Apple Watch