What Is iCloud Backup?

iCloud Backup is an automatic service that creates a complete copy of your iPhone or iPad's important data and stores it securely in Apple's cloud servers. If you ever lose your device, get a new one, or experience a major software issue, you can restore from an iCloud backup to get back to exactly where you left off.

What Does iCloud Backup Actually Include?

Many users assume iCloud Backup saves everything — but some data is synced through iCloud separately and isn't part of the backup file itself. Here's what's included and what isn't:

What IS Included in iCloud Backup

  • App data and documents
  • App layout and home screen organization
  • Apple Watch backups (when your iPhone is backed up)
  • Device settings and preferences
  • iMessage, SMS, and MMS messages (if not using Messages in iCloud)
  • Photos and videos (if iCloud Photos is turned off)
  • Purchase history for apps, music, movies, and books
  • Ringtones
  • Visual Voicemail password

What Is NOT Included (Synced Separately via iCloud)

  • Contacts, Calendars, and Reminders (synced via iCloud)
  • iCloud Photos library (stored separately in iCloud Photos)
  • Notes synced to iCloud
  • Safari bookmarks and history
  • Health data (backed up separately and encrypted)
  • Face ID and Touch ID settings
  • Apple Pay card information

How to Enable iCloud Backup

  1. Open Settings on your iPhone or iPad
  2. Tap your name at the top, then tap iCloud
  3. Scroll down and tap iCloud Backup
  4. Toggle Back Up This iPhone to the on position
  5. Tap Back Up Now to start your first backup immediately

How Automatic Backup Works

iCloud automatically backs up your device when all three of these conditions are met:

  • Your device is connected to Wi-Fi
  • Your device is plugged in to power
  • Your device screen is locked

Backups typically happen overnight. You can see the date and time of your last backup at the bottom of the iCloud Backup settings screen.

Managing Your iCloud Backups

Viewing and Deleting Old Backups

  1. Go to Settings → [Your Name] → iCloud → Manage Account Storage
  2. Tap Backups
  3. You'll see backups from all your devices. Tap any backup to view its size and last backup date
  4. Tap Delete Backup to remove old backups you no longer need

Choosing Which Apps Are Backed Up

You can reduce your backup size by excluding apps with large data sets you don't need:

  1. Go to Settings → [Your Name] → iCloud → iCloud Backup → [Your Device]
  2. Under Back Up Data, toggle off any apps whose data you don't need to back up

iCloud Backup vs. iCloud Sync: Understanding the Difference

Feature iCloud Backup iCloud Sync
Purpose Restore a device from scratch Keep data current across devices
When it runs Daily (when conditions are met) Continuously / in real time
Examples App data, SMS, settings Photos, Contacts, Notes
Counts toward storage Yes Yes (separately)

Tips for Keeping Your Backup Healthy

  • Run a manual backup before any major iOS update
  • Always back up before switching to a new iPhone
  • Check your last backup date weekly to ensure it's running
  • Keep at least 20% of your iCloud storage free so backups have room to update

Conclusion

iCloud Backup is one of the simplest and most important protections you can enable on your Apple device. Understanding exactly what's included — and what's handled by iCloud sync separately — helps you make better decisions about storage and ensures nothing critical slips through the cracks.