Sunrise Calendar for iPhone and iPad is a great alternative to the built-in Calendar app that supports Google Calendar, iCloud, and Exchange. The thing that makes Sunrise unique from other calendars is the way it presents information and combines your social accounts. Want a running record of how often you've been to the gym this week? Just give Sunrise access to Foursquare and all your check-ins feed right into your calendar.
When you first launch Sunrise, you can choose to import your existing calendars. You can do this by linking up a Google account or granting access to your iCloud or Exchange calendars. Sunrise can also keep track of all your social accounts with your Sunrise login so when you log in on a new device, all your stuff is exactly as you left it.
As for creating and inputting events, Sunrise supports natural language input. Simply start typing or dictating what you'd like to add and Sunrise can take care of the rest. For example, you can say something like "Lunch with Rene tomorrow at noon". Sunrise will know exactly what you meant and add it to your calendar accordingly. You can, of course, add things manually and toggle events between different calendars you've already got set up.
Sunrise is also one of the few options that integrate not only iCloud calendar invites, but Facebook as well. For example, if you get invited to an event on Facebook, you'll get alerted in Sunrise too. This way all your events are in one place instead of scattered between different apps. Foursquare check-ins work in much the same way. And for times when you need to focus on getting things done, you can easily hide whatever calendars you don't want to see. Bring them back in just a few taps when you're ready.
Sunrise for Mac - Free - Download Now