One project per client. Add pages, drop pins, send the link (or file) to your dev.
Review a live URL, or upload a local HTML file you haven't published yet.
Works best with a self-contained file (images/CSS inlined). Files that link to separate asset files will show missing images.
Each page keeps its own set of pins. Use a URL or upload an HTML file.
Your name is attached to every pin and reply so the dev knows who said what. No account needed.