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