Pulse 24/7 - Booking & scheduling mobile app for service providers
Google Calendar - Spend less time managing your day & more time enjoying it
Time Slot Booking Calendar PHP - Time Slots Booking Calendar PHP for online appointment booking and class scheduling.
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.