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Heptabase vs Allume: catalog facts
Heptabase	Allume
Paid Paid subscription, no permanent free tier mentioned.	Freemium Free to download, with plans listed on the pricing page.
Windows, macOS, Web	macOS, iOS
Whiteboard and card format suits visual thinkers and complex research Cross-platform availability across desktop and web	Nested boards for open-ended ideation Mixes ink, text, images, PDFs and links on one canvas
Paid subscription required to use Visual, card-based workflow takes longer to set up than plain text notes	Apple platforms only Renamed from Muse, so older guides use the previous name
Downloadable app, Web application	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	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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