[pagade]

I am really surprised no one has mentioned https://zenkit.com/. Kanban - Wiki - Calendar - List - Mindmap - Hierarchy etc. It does those things very well.

[slightwinder]

Probably because it seems to be less known than Notion. IIRC it's a bit more expensive and more constrainend than notion, more targeted at teams than single users.

[sirusdas]

I really liked it first impression UI lets see how it goes. Thanks for the share.

[biosed]

Is data removable, do you use?

[pagade]

I use it for personal purpose. By data removable, I guess you mean right to be forgotten. Their https://zenkit.com/en/gdpr/ page provides the details.