Lighten your gig bag! GuitarToolkit delivers all your essential guitar tools—tuner, metronome, chords, scales & arpeggios.

Supports all your instruments! 6-, 7- and 12-string guitar, 4-, 5- and 6-string bass, ukulele, banjo and mandolin, each with standard & alternate tunings.

■ Tuner, chords, scales & arpeggios automatically adapt for the selected instrument & tuning.
■ Superb chromatic tuner, every bit as accurate as dedicated hardware tuners but far more flexible.
■ Massive library of over 2,000,000 chords, scales and arpeggios. Strum chords and tap notes to hear what they sound like.
■ Precision metronome can run in background while using other GuitarToolkit features or other apps.
■ Chord finder answers the question, "What chord is this?"
■ Universal: buy once and use on your iPhone, iPad & iPod touch
■ And so much more!

■ Chord Sheet Creation & Editing: Create chord progressions from GuitarToolkit's vast 2,000,000 chord library. Tap to add chords, easily email your Chord Sheets to bandmates or students. Interactive chord playback, just touch to hear your chords play.
■ Drum Pattern Creation & Editing: Create rich, exciting drum patterns for practice and jamming. Custom-build patterns with up to 32 tracks and 75 different drum sounds.
■ Custom Instruments: Create virtual instruments inside GuitarToolkit that look and sound like your real-life instruments!

■ NEW: Jump start your chord & rhythm skills! The Chord Sheet Store delivers professionally-crafted learning content based on GuitarToolkit's powerful interactive Chord Sheets.
■ The most comprehensive & highly-rated guitar tool in the App Store!
■ Best-of-breed tuner, huge chord / scale / arpeggio library, flexible metronome

What’s New

Version 2.6.0

Bug fixes and performance improvements.

Ratings and Reviews

2.8 out of 5
87 Ratings

87 Ratings

conchero ,

4 Cents Sharp

I started using this App as my main guitar tuner several years ago because I always seem to have my iPhone with me, but apparently I never checked to verify how accurate it is, because just now, years later, I have discovered that this App is consistently tuning my lowest 3 guitar strings 4 cents sharp. The top 3 strings are spot on, compared to other tuners, but not the bottom 3. This happens both acoustically when tuning with the build-in iPhone microphone, and when I plug electrically directly into the iPhone. Any idea why this happens? I know I can shift the reference pitch, but that will only help me half the time. Why would it measure some strings right in tune, but others 4 cents sharp? I don't understand from a technical perspective how this is possible.

The Reluctant Critic ,

Tuner Highly Inaccurate

All these years I’ve had this app I didn’t realize how inaccurate it was until I took my guitars to a tech and he used a digital tuner. I had thought my intonation was off on all guitars, because this app rendered wild variations at the 12th fret.

Still has scales and a chord library, but the tuner is now worthless to me. Too bad because I loved the alternate tunings feature. Now I do it all digitally.

If you want to stick with apps, insTuner is very accurate, even at the 12th fret.

kenkanplay ,

Don’t buy it

Unbelievable, I used this app for several months to tune all my stringed instruments and one day it just stopped working. I tried everything to get it to work to the point of enlisting my children to see if they could help me out with no luck. Then in a last ditch effort I paid the 5.99 to update it thinking that must be the problem, it still doesn’t work. So basically the people who have received my 5.99 just scammed me. Whatever you do don’t buy it, it’s a scam. I also discovered that it hasn’t been updated in over 2 years so obviously the developers have also given up on it.


Agile Partners Technologies, LLC
81.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Italian, Japanese, Simplified Chinese, Spanish

Age Rating
In-App Purchases
  1. Unlock All $11.99
  2. Beginner Chord Studies: Vol. 1 $1.99
  3. CAGED Chord Studies: Vol. 1 $3.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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