Taskeo - Project Management & Automation Tool With an Integrated Appointment Scheduler
FreeBu - Smart free/busy calendar sharing and meeting organizer.
TimeTrade - TimeTrade offers SaaS-based self and assisted-service appointment scheduling solutions for enterprises and individuals.
Letsfind - Letsfind is a fast, easy-to-use, ad-free way to create online (meeting) polls.
NextMe - NextMe is professional wait-list and queue management software that allows a business to streamline their appointment scheduling online.
FullCalendar - FullCalendar is an open-source JavaScript event calendar.