Tinderbox
A workbench where notes can be a map, a timeline, a chart, or a dashboard you designed.
The map is the argument. Image from Eastgate. 
One life, on a scale you can drag. Image from Eastgate.
Most note apps store text. Tinderbox stores notes that can grow attributes, then lets you look at the same notes as a map, an outline, a chart, a timeline, or a dashboard you laid out yourself. The map is not decoration. Where a note sits is part of the thinking, and a link between two notes is a claim you can see.
The document can watch itself. Agents gather notes that match a rule. Prototypes hand structure to the next note so you are not retyping the same fields. Export turns the file into HTML, or into whatever the work needs next. You start with a pile and add form only where it earns its keep. Eastgate’s current release is Tinderbox 11.8, with faster AI connections and faster map views.
That is why it survives a project that outgrows a folder of markdown. Their own examples are the argument: a writing dashboard that knows the word count and which chapters still need a fact, a map of a software process, a timeline of Oscar Wilde with the life and the publications on one scale. A novel, a course, a case, a season of concerts. The file gets smarter as you do.
Buy from Eastgate: eastgate.com .