Dudle - Dudle is an online scheduling application, which is free and open source.
eClinicalWorks - eClinicalWorks - the largest Cloud EHR in the nation. Make the switch to eClinicalWorks
FullCalendar - FullCalendar is an open-source JavaScript event calendar.
SimplePractice - With SimplePractice, manage your notes, scheduling, and billing all in one place. Conduct secure video appointments with Telehealth by SimplePractice.
Framadate - Make your polls
WebPT - WebPT is a completely legit and reliable physical therapy automation software platform that allows rehabilitation centers to streamline their business operations.