How to set up iCloud Mail, Contacts, Calendars, and more on your iPhone or iPad

[iMore.com]

If you didn't originally set up your iPhone or iPad with iCloud, or if you want to use a different iCloud account than you do for iTunes purchases, you may need to sign in and set up iCloud outside of the initial setup process. In some cases, you may simply want to add an additional account to your device, you can add an iCloud account at any time via the Settings app.

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