Unlock Frettler Pro

Unlock Frettler Pro with a one-time purchase on the Mac App Store.

Explore the complete collection of scales, modes, chords and tunings, create richly interactive fretboards and chord organisers, and save your work in reusable Frettler documents.

There are no monthly or annual subscriptions, and Family Sharing is supported.

Why Go Pro?

Frettler began as a personal project for exploring the guitar through clear visualisation, practical music theory and interactive sound.

With Frettler Pro, you can combine multiple scale, mode and chord fretboards within reusable documents, create chord organisers, explore different tunings and build a personal library that supports your playing, learning and songwriting.

Your purchase unlocks the complete current feature set while also supporting the continued development of Frettler.

When you go Pro, you’re getting more than just the current feature set — you’re also supporting ongoing development and helping to shape where Frettler goes next.

What You Get with Frettler Pro

  • Create fretboards using all 14 scale types, 9 modes and 44 chord types currently included with Frettler.
  • Use the complete collection of instrument tunings.
  • Create and save documents containing multiple fretboards and chord organisers.
  • Explore patterns interactively with note marking, interval display and audio playback.
  • Receive bug fixes, performance improvements and refinements to existing features at no additional cost.
  • Benefit from future additions to the existing scale, mode, chord and tuning collections.

There are no subscriptions — just a straightforward, one-time purchase on the Mac App Store.

Occasionally, substantial new modules may be available separately. If that happens, they’ll be clearly labelled and entirely optional — you’ll always keep what you’ve already unlocked.