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Heimer vs MindNode: catalog facts
Heimer	MindNode
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Free to download from the App Store, with paid features.
Windows, Linux	macOS, iOS
Supports automatic layouts and image exports.	Native app on Apple devices Switches between mind map and outline views
It is a diagramming tool rather than a full document editor.	Apple platforms only No web or Windows version
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	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 23, 2026

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