StrumTune
Guitar Tuner
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
StrumTune tunes your guitar, bass, ukulele and more — accurately, and completely free.
No ads. No subscriptions. No accounts. Nothing is collected, and the app never connects to the internet.
TUNE ANY STRING
Play a string and StrumTune names it, shows how far off you are in cents, and turns green the moment it lands. The needle settles quickly, so you spend less time watching the screen and more time playing.
CHROMATIC MODE
Not every note is an open string. With a capo on, on a fretted note, or with an instrument that has no preset, chromatic mode reads any of the twelve semitones instead of forcing your note onto the nearest string.
MANUAL MODE
Prefer to tune by ear? Tap a string to hear a clean reference tone and match it. Works even without microphone access.
9 INSTRUMENTS, 25 TUNINGS
Guitar (Standard, Drop D, Drop C, Half Step Down, Full Step Down, Open G, Open D, Open E, Open C, DADGAD), 7-string guitar, bass, 5-string bass, ukulele, mandolin, banjo, violin and cello.
YOUR OWN TUNINGS
Set any note on any string, save it under a name, and it is waiting for you next time. Edit or delete it whenever you like.
BUILT-IN METRONOME
30 to 240 BPM, time signatures 2/4, 3/4, 4/4 and 6/8, tap tempo and an accented downbeat. The click is scheduled sample-accurately, so the tempo never drifts.
MADE FOR PLAYERS
- Left-handed mode mirrors the fretboard
- Reference pitch adjustable from 430 to 450 Hz for orchestras and period instruments
- Note names as C D E or Do Re Mi
- The screen stays awake while you tune
- Your instrument and tuning are remembered between sessions
Everything listed above is included. There is no paid tier and nothing to unlock.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Cafo Kajmer, 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
- Cafo Kajmer
- Size
- 2.3 MB
- 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. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Russian
- Age Rating
4+
- 4+
- Copyright
- © Cafo Kajmer