Pro Musician ToolkitA guitar tuner that reads all six strings at once
The tuner in Pro Musician Toolkit shows the note you play, its frequency and how many cents sharp or flat it is. It works for any instrument, and for guitar it has a trick most tuners do not: strum once and it reads all six strings together.
It listens through the microphone only while the tuner is open, and nothing is recorded or sent anywhere.
What the tuner shows
The big letter is the note you are playing, with its octave. Above it sit the frequency in Hz and the offset in cents, and the needle sits on a ruler of cents that turns lime when you are in tune.
The tuner also draws the last few seconds under the note, so a string that drifts while it rings shows up straight away.
Strum mode: tune every string at once
Switch from one note at a time to strum mode and the tuner reads all six strings of a guitar in standard tuning, E A D G B E, from a single strum. Each string shows whether it is flat, sharp or in tune, so you only touch the pegs that need it.
If two strings are too close to separate, pluck the one in question alone and the tuner follows it.
Reference tones and reference pitch
- Tap any note on the keyboard strip to hear a reference tone and tune by ear.
- Set the reference pitch anywhere from 430 to 450 Hz. The default is A = 440 Hz.
- Use 442 for orchestras that tune high, or 432 if your band prefers it.
Questions
Is the guitar tuner free?
Yes. The tuner, including strum mode, is part of the free Pro Musician Toolkit app for iPhone and iPad.
Can I tune instruments other than guitar?
Yes. The single note mode is a chromatic tuner, so it works for bass, ukulele, violin, voice, horns and anything else that holds a pitch. Strum mode is for six string guitar in standard tuning.
Can I change A = 440?
Yes. The reference pitch can be set from 430 to 450 Hz in Settings.
Try it in Pro Musician Toolkit
Free on the App Store for iPhone and iPad. Requires iOS 17 or later.