Every project tool that dies of complexity dies the same way: one more level, one more toggle, one more "everything view" until the new hire needs a diagram. IterDone stops at three: Spaces, Folders, Lists. That sentence is the onboarding.
What each level is for
- Space — a client, a department, or a product. The permission and guest boundary.
- Folder — an engagement, a quarter, a workstream. Optional. Skip it if a space only has one board.
- List — the board. Also a table, a calendar, a timeline, a workload view of the same tasks.
The spaces and lists and folders docs are the longer version. A new hire does not need them to start.
Why not four
A fourth level is how you get nested spaces, everything-views and a sidebar that scrolls. ClickUp can represent almost any org chart. That is why people search "ClickUp too complex." monday.com's Work OS is the same instinct with different nouns. Notion's page tree can nest forever, which is correct for a wiki and wrong for a tracker. The comparisons: vs ClickUp, vs monday.com, vs Notion.
An agency example, said once
Space per client. Folder for the retainer, folder for the one-off campaign. List for the board the designer actually moves cards on. The client's guest is granted that one list. Thirty clients is thirty spaces that all look the same, which is the feature: an account manager can move between six accounts a day without relearning where anything lives. That write-up lives on the agencies page.
See the sidebar
The live demo is a workspace with this hierarchy already in it. No signup. If you can say "space, folder, list" while looking at it, you are done with onboarding.