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Ideon vs Conceptboard: catalog facts
Ideon	Conceptboard
Freemium Free to self-host under AGPL-3.0; the website also has a pricing page.	Paid Paid service with a free trial.
Web, Self-hosted	Web
Live embeds from GitHub, GitLab, Gitea and Forgejo Real-time collaboration on one canvas	GDPR-compliant hosting Tasks with assignees, deadlines and tags on the board
Requires Docker and PostgreSQL to self-host Young project with a small community	No permanent free plan mentioned Browser only
Self-hosted	Hosted service
Open source	Closed source
License: AGPL-3.0	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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