
SUS4 Scale Lab: Guitar Scales
104 scales on fretboard, piano
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About
Pick a root and a scale and see every note on the fretboard and the keyboard at once.
104 scales and modes in 15 categories, from the pentatonic to ragas.
Fully on-device: no cloud, no account.
Choose the tonic and the scale type; the fretboard (standard tuning) and a two-octave piano light up. Tap a note to hear it, read the scale degrees and the diatonic chords, and try the Scale Hunter challenges.
• 104 scales and modes: major, minor, pentatonic, modal, jazz, world and more
• Guitar fretboard and piano keyboard views
• Scale degrees and diatonic chords
• Theory cards and mode comparison
• Scale patterns with tab export
• Scale Hunter challenges
For guitarists learning modes, pianists checking a scale, and improvisers who want to see where the notes are.
Everyone can browse the whole catalog and play three scales a day. Pro, or SUS4 All-Access across the whole range, removes the daily limit on playback.
Made in the UK by working musicians.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in SUS4 Scale Lab
1.3.0
October 31, 2026
Fixes text showing behind the status bar when you scroll.
1
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SUS4 All-Access
Pro in every SUS4 app, billed monthly.
$5.991 Month
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