Google Calendar - Spend less time managing your day & more time enjoying it
Pulse 24/7 - Booking & scheduling mobile app for service providers
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
MakePlans - Online appointment booking - MakePlans
Calendar Lock PEA - Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.
Appointment Booking Calendar - With the Appointment Booking Calendar you can accept online bookings from a set of available time-slots in the calendar.