I make NOS Workspace. I need to correct the original post: I had not substantiated its blanket claims about HTML files, PDF export or every small edit needing another AI prompt. NOS stores HTML you already have, lets you edit its text, and shares a page by link; it does not generate HTML. The budget page is a sample, not a client success story.
Saving and creating a share link requires a Google or email account. The free plan permits three active documents and 2 MB per file. Anyone with the link can read the page, so it is not a private client portal. External image URLs are blocked: upload or embed the images. Not every script or integration works; check the result before handing it over.