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

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