GW Calendar for iPhone/iPad - GW Calendar is a GroupWise calendar client for iPhone, iPod touch, and iPad. It has a more convenient interface than the one delivered by Novell through GroupWise WebAccess. The app gives you both a day view and a week view into your calendar with easy access to the information on your calendar
Calendars+ by Readdle - Calendars is an elegant and easy to use calendar application which works perfectly with Google Calendar and the built-in iOS Calendar.
Calendars lets you manage events both online and offline
CalPrint for iPhone - CalPrint is a calendar printing utility for iPhone. It allows you to print the day/week/month views of your calendar directly to most WiFi printers, or to all printers connected to your Mac or PC without additional software required.
Besides printing, CalPrint is also a fully featured calendar viewing and editing app
Today Calendar for iPhone - Today Calendar is a simple but practical calendar that lets you see your entire week at a glance. Because you care more about today's events than next week's, your events are summarized intelligently, with today's events in great detail, then events from tomorrow and the day after in less detail, then an overview of events in the following week
Pocket Informant Pro (iPhone/iPad) - Pocket Informant is an integrated calendaring and GTD-based tasks solution for the iPad. Our purpose is to fuse together best-of-class calendaring with best-of-class tasks into one great solution
CircleTime - CircleTime is a revolutionary calendar which brings a completely new understanding of time. Instead of the established linear perception of time in which the days keep going by, the new calendar enables a unique display of time periods in an orbit, on which you can, by turning it, travel forwards or backwards in time.
The new calendar is simple
Calendars is an elegant and easy to use calendar application which works perfectly with Google Calendar and the built-in iOS Calendar.
Calendars lets you manage events both online and offline
Agenda Calendar - When you're mobile, your iPhone calendar app's main focus is to show you what's happening now.
Enter Agenda.
Agenda is a beautifully designed calendar for iPhone, iPod touch, and iPad that gives you various "at a glance" views. We've stripped away all the stuff you don't need, so you can more quickly manage your day
Chinese Lunar & Solar Calendar - Chinese Calendar Plus - Lunar & Solar Calendar (Chinese Version) is a special calendar that allows you see both the lunar and solar calendar.
You can use Calendar Plus in choosing good / lucky days or suitable days based on your age