Google Calendar - Spend less time managing your day & more time enjoying it
Calvetica - The fast calendar for iPhone. Add an event in just two quick taps.
WAVE Calendar - WAVE Calendar is a revolutionary app, which is designed to bring balance to your life
24me - Next Generation Personal Assistant
CalenGoo - Features | 1.0.175 for Android™
Awesome Cal - Awesome Cal is a Calendar application for your iPhone that you can take anywhere and keep close by to monitor all the upcoming birthdays, festivities, meetings, and more from a single place.