Calendars 5  vs Awesome Cal

Calendars 5 uses the reminders that already exist, and can add new reminders with Siri.

Unique and efficient way to display weeklong agenda in portrait view.

Calendars 5 makes it very easy for users to create an event by just typing it in human language.
Simply write something like 'Meet Ben tomorrow at 5PM at Starbucks' and Calendars 5 will parse everything, creating an event for tomorrow, inviting Ben from the address book and picking the Starbucks on the map.

The choice of font size, color and user interface widgets are all esthetically pleasing.

The new notification center puts all the info in one place, and lets users choose from several different views.

The UI provides a very simple approach to repeating events or reminders. Users can choose from daily, weekly, monthly, or yearly, number of weeks, or by specific days.

Moving the date of an appointment is easy.

Awesome Cal lets users change font, day colors, stickers, weather display, and more.

Awesome Cal integrates well with Google Task for day-specific to do lists.

You can see your events in a week view and month view. Or you may scroll through your agenda.

The best calendar I've ever used.