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Scapple vs Allume: catalog facts
Scapple	Allume
Paid One-time purchase, with a free trial available.	Freemium Free to download, with plans listed on the pricing page.
Windows, macOS	macOS, iOS
Notes can go anywhere with no forced central topic Connections made by dragging one note onto another	Nested boards for open-ended ideation Mixes ink, text, images, PDFs and links on one canvas
Paid after the trial No Linux or mobile versions mentioned	Apple platforms only Renamed from Muse, so older guides use the previous name
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
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.