This is a copy of an article from Apple available here.
About iCloud Backup
iCloud backups include nearly all data and settings stored on your device. iCloud backups don’t include:
- Data that’s already stored in the cloud, like contacts, calendars, notes, My Photo Stream, and iCloud Photo Library
- Data stored in other cloud services, like Gmail and Exchange mail
- Apple Pay information and settings
- Touch ID settings
- Content you didn’t get directly from iTunes, App, or iBooks Stores, like imported MP3s, videos, or CDs
- iTunes in the Cloud and App Store content
If it’s still available in the iTunes, App, or iBooks Store, you can tap to re-download your already purchased content.
- iCloud may not backup non-Apple apps such as the Notability app for note taking. Click here for how to backup Notability files.
How to back up your devices using iCloud or iTunes
If you back up your iPhone, iPad, or iPod touch, you’ll have a copy of your information to use if your device is ever replaced, lost, or damaged. Backups let you transfer data from your last device to your new one.
Choose a backup method
Before you get started, learn the difference between making backups with iCloud and iTunes. For example, iCloud backups include different kinds of data than iTunes backups. Decide which method is best for you and follow the steps below. In case you ever need an alternative backup, you can make one in iCloud and another in iTunes.
Make a backup using iCloud
- Connect your device to a Wi-Fi network.
- In iOS 8 or later, tap Settings > iCloud > Backup.
In iOS 7 or earlier, tap Settings > iCloud > Storage & Backup.
- Make sure that iCloud Backup is turned on.
- Tap Back Up Now. Stay connected to your Wi-Fi network until the process completes.
- Make sure the backup finished by tapping Settings > iCloud > Storage > Manage Storage. The backup you just made should appear with the correct date and backup size.
After you’ve turned on iCloud Backup, iCloud can automatically back up your device each day. iCloud makes these daily automatic backups only if:
- Your device is connected to a power source.
- Your device is connected to a Wi-Fi network.
- Your device’s screen is locked.
Make a backup using iTunes
- Open iTunes and connect your device to your computer.
- Save content that you downloaded from the iTunes Store or App Store by clicking File > Devices > Transfer Purchases.
- Click File > Devices > Back up.
- After the process ends, you can see if your backup finished successfully by clicking iTunes Preferences > Devices. You should see the name of your device with the date and time that iTunes created the backup.