Google Calendar

• Events from Gmail - Flight, hotel, concert, restaurant reservations and more are added to your calendar automatically.
• To-dos - Use Reminders to create and view to-dos alongside your events.
• Goals - Add personal goals—like “run 3 times a week”—and Calendar will schedule time for them automatically.
• All your calendars in one place - Google Calendar works with all calendars on your phone, including Exchange.