According to AlphaMoat, in the latest data month ProtoNote (protonote.io) received 0 monthly visits — ranked #0 of 17,424 AI websites with traffic data, and #0 of 1,249 in Office & Collaboration.
ProtoNote hosts AI-built prototypes and Claude artifacts so a team can review them in one place. A user uploads HTML, Markdown, images or PDFs, or asks Claude to turn the work into a ProtoNote link, and then sends one link that opens on any device with a real preview in Slack. Reviewers pin notes to the exact spot on the exact version, notes appear live as the team works through the page, and the creator is notified as they arrive. Older versions keep their own notes, so shipping a new version does not lose the feedback given on the previous one, and no one who reviews ever has to sign up.
The Free plan is $0 and covers three active prototypes with unlimited reviewers and notes; Pro is $10 /month for unlimited prototypes, folders and version history, and reviewing stays free for anyone who receives a link.
Data month: — · Visit figures are third-party traffic estimates aggregated monthly — best for scale and trends. Multiple domains of the same product are merged. See methodology.