Frequently asked questions

Each app is a one-time purchase of $9.99 (US price; other regions vary). There are no subscriptions, no in-app purchases and no ads. When new features are added to your purchased app, you automatically get those new features for free

iPhone and iPad running iOS/iPadOS 18 or later, and Macs with Apple silicon (M1 or later) running macOS 15 or later.

Not at the moment. GTK is currently available for Apple platforms only.

Yes. Every GTK app supports Family Sharing for up to six family members.

Yes – Guitar, Ukulele, Banjo and Bass each have their own app, because each one is built around that instrument's tunings, fret ranges and chord shapes. You only need the apps for the instruments you play.

Purchases are handled by Apple. You can request a refund at reportaproblem.apple.com. If something isn't working, please contact us first – we may be able to fix it.

No, but GTK absolutely complements and supports any other theory study you are undertaking. GTK is a set of tools that connect theory to the fretboard – it shows you where scales, chords and triads live on your instrument so you can see, hear and practise them. The theory underpinning scales, chord composition and inter-relationships are present in the tools. Some theory knowledge helps, and the in-app help explains each tool.

Yes. Everything runs on your device. No account and no internet connection are needed.

Yes. Each app supports the common tunings for its instrument, and the fretboards, chords and scales follow the tuning you choose. The tuner listens to pitch, so it works with any tuning. See the Compare page for the full list.

Pluck one string at a time and let it ring, keep background noise low, and hold the device near the instrument. Watch for the Locked indicator – the tuner holds the last stable reading when the note fades so you can read it.

No. Any chord or scale can be played almost anywhere on the neck – you just need to know what it looks like there. Position Finder takes a key and the fret where you want to play, and shows you that key's notes around it, so you can keep your hand in one comfortable spot.

Yes. Custom Chords lets you build a voicing, have the app name it, play it back and share it.

None. GTK has no analytics, no advertising, no crash reporting and no accounts. Tuner audio is processed on-device in real time and is never recorded or transmitted.

Only the tuner uses the microphone, to hear the note you're playing. Audio never leaves your device. You can decline and still use every other tool.

Use Settings → Contact Us in the app, the form on our Support page, or email appsupport@gtktoolkit.com. Screenshots and steps to reproduce help a lot.