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Guitar Pro vs Fretboard: catalog facts
Guitar Pro	Fretboard
Paid Commercial software; mobile apps and the mySongBook tab catalog are offered separately.	Free Free and open source under the GPL-3.0-or-later licence.
Windows, macOS, Android, iOS	Linux
Tablature and standard notation for fretted instruments, drums and piano Built-in audio engine for playback	Look up chords by name or by plotting them on the neck Shows alternative fingerings and barre chords
Paid software Tab catalog and lessons are separate products	Guitar only Linux only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.