Multiple accounts, one calendar
The following list of calendar apps are some of the best options for iOS users due to their ease of use, breadth of functionality, basic convenience, and most importantly, their price – all free. Best For Changing The Calendar Look: Vantage (App Store). Best free calendar app for Apple users Not sure where to start? Apple's Calendar, which is already installed on your Mac, is clean, functional, and syncs with your iPhone and iPad without any effort. Adding appointments is simple: click the + button. And Microsoft To Do is currently completely free with no in-app purchases. Availability: iPhone, iPad, Mac, Android, Windows, and the web; Cost: Free; Any.do. One more free task list app for Mac you should take a look at is Any.do. This app offers a terrific design, cross-platform syncing, and a built-in calendar to help you stay on track. If you've got a wide range of Apple devices, from MacBooks to iPhones and even an Apple Watch, then Fantastical is the best calendar app for you. It has an app for pretty much every Apple product.
Manage all your events in Calendar, even if they’re in different accounts like iCloud or Google.
Color code your life
Create separate calendars for different areas of your life. Then, spot your work, family, or personal events with a quick glance.
Invite and be invited
Quickly set up your own events and send Calendar invitations to friends and coworkers.
Put your event on the map
All the information you need about an event at your fingertips. When you add the location of your event—like the name of a restaurant—Calendar fills in the address, shows you a map and the weather, and lets you know when it’s time to leave.
Calendar App Free Trial
To explore the Calendar User Guide, click Table of Contents at the top of the page, or enter a word or phrase in the search field.