[notahacker]

yeah, it's pretty much how "Twitter clone" tells you as much about the expected feature set as half a page on microblogging, follow and share protocols, tagging and push notifications.

I think they could improve the below-the-fold description quite a bit, but the two words "Calendly alternative" convey the important bit about it being a customer-facing time-slot picker that connects to all your calendars, CRMs and webconferencing tools more precisely than "appointment scheduler" which might miss these features and lock you into various others, and probably gets more relevant search traffic too.