Event Calendar App - A simple, easy to manage, way of displaying events
Plan - Plan is a better way to organize.
Future - Calendar events around the clock
Any.DO - The #1 task management app used by over 11 million people globally, Any.do is your free mobile and online task manager for Android, iPhone, Web and more.
Whenever - Casual calendar app for iOS
TimeFerret - Be in control of your time, schedule with ease