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

2.6 out of 5
107 Ratings

107 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.

Dahveeth ,

Had to buy it twice, crashes, tuner disappears

I originally bought this app a few years back...and then they just quit updating it and removed my version from the App Store, forcing me to re-purchase only a few years after buying the original app.

Half the time the tuner tab shows up blank. No tuner, no interface, just a blank grey screen. All of the other tabs will still be working fine...just not the tuner tab - which is what I’m using this app for 99% of the time.

I’ve also found the tuning to be a few cents off as has been reported by other users. So, do the developers of this app just go on holiday after the release? What’s the deal with your app? Do you even update, bro?

Mark on Mac ,

Better than I thought

I’ve had this app for many years and never used it much until a few days ago when I needed to find some obscure chords (common in jazz) and put together a chord sheet with the diagrams. Works like a charm for those tasks (if you unlock all the features).

This app still works in iOS 13 on both my iPhone and iPad. It appears to be abandoned by the developers, which is too bad because it would benefit from a thorough UI refresh and iCloud functionality.


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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