Dudle - Dudle is an online scheduling application, which is free and open source.
Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
Framadate - Make your polls
ScheduleOnce - Meeting and appointment scheduling software that helps you save time, increase customer satisfaction and be more competitive.