Design docs deserve more than a comment thread.
We built Sekkei after too many design reviews that ended in a resolved comment, a decision nobody wrote down, and the same debate six months later.
Sekkei vs Google Docs
Google Docs is great for writing together, but resolved comments lose their reasoning and there is no decision record or approval tied to a version.
Sekkei vs Confluence
Confluence is a company wiki. Design reviews, decisions and sign-off happen beside it rather than in it.
Sekkei vs Notion
Notion is a flexible workspace, but design reviews have no built-in approvals, decision record or rejected alternatives.
Sekkei vs GitHub
Pull requests review code. Most people who should weigh in on a design never open one.