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Allume vs Heptabase: catalog facts
Allume	Heptabase
Freemium Free to download, with plans listed on the pricing page.	Paid Paid subscription, no permanent free tier mentioned.
macOS, iOS	Windows, macOS, Web
Nested boards for open-ended ideation Mixes ink, text, images, PDFs and links on one canvas	Whiteboard and card format suits visual thinkers and complex research Cross-platform availability across desktop and web
Apple platforms only Renamed from Muse, so older guides use the previous name	Paid subscription required to use Visual, card-based workflow takes longer to set up than plain text notes
Downloadable app	Downloadable app, Web application
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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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