The two ways to back up your iPhone

You have two main paths to back up an iPhone: iCloud, which stores your data on Apple's servers and works over wifi, or your computer, which stores everything locally on a Mac or Windows PC using iTunes or Finder. Most people use iCloud because it happens automatically and you do not need a cable. If you have a lot of photos or videos, or if you want a second copy stored physically in your home, a computer backup is worth doing alongside iCloud.

Both methods back up the same things: your photos, messages, contacts, calendar, app data, settings, and the layout of your home screen. Neither backs up the apps themselves — those read fresh from the App Store when you restore. Both take 15 minutes to an hour depending on how much data you have.

The choice between them is not either-or. You can use iCloud as your main backup and plug into a computer once a month for a second copy. You can also switch methods later — a backup from iCloud restores onto a computer backup and vice versa.

Key Takeaways

  • iCloud backs up automatically over wifi if you turn it on in Settings, and you can restore from any device with your Apple ID.
  • A computer backup using Finder (Mac) or iTunes (Windows) stores everything on your computer and requires a cable, but gives you a copy you physically control.
  • Both methods back up photos, messages, contacts, and app data, but not the apps themselves.
  • You can restore from either backup type to a new iPhone, a used iPhone, or the same iPhone after a factory reset.
  • Backups are encrypted by default on iCloud; on a computer, you can choose whether to encrypt them.

How to set up iCloud backup

Open Settings on your iPhone, tap your name at the top, then tap iCloud. Scroll down and tap iCloud Backup. Turn on the toggle next to "iCloud Backup" — it will turn blue. Your iPhone will start backing up when ready if you are on wifi and plugged in. After that, it backs up automatically once a day when your phone is locked, on wifi, and charging.

Check how much iCloud storage you have left by going to Settings, your name, iCloud, and tapping "Manage Storage" or "Storage". Your first 5 gigabytes are free. If you have thousands of photos or videos, you may need to pay for more storage — Apple offers 50 GB, 200 GB, or 2 TB plans. You can also delete old backups of phones you no longer own to free up space.

If you share an Apple ID with family members, each person's backup counts toward the same storage pool. If storage is tight, you can turn off iCloud Backup and instead use iCloud Photos, which stores only photos and videos and may be cheaper depending on how many you have.

How to back up to a computer

Plug your iPhone into a Mac or Windows PC with a USB cable. On a Mac running Catalina or newer, open Finder and click your iPhone in the sidebar under Locations. On a Windows PC or older Mac, open iTunes. Click the iPhone icon in the top left corner of the window.

Under "Backups", choose "This Computer" instead of "iCloud". If you want to encrypt the backup so that passwords and health data are included, check the box next to "Encrypt local backup" and set a password you will remember. Click "Back Up Now". The backup will take 15 minutes to an hour depending on your data.

After the first backup, you can plug in your phone and back up again anytime. Finder or iTunes will back up only the changes since the last backup, so later backups are much faster. Keep your computer in a safe place — if it is stolen or damaged, your backup is gone.

How to restore from iCloud

Restoring from iCloud works during the initial setup of a new iPhone or after a factory reset. When you turn on a new iPhone for the first time, you will see the setup screen. Tap "Restore from iCloud Backup" and sign in with your Apple ID. Choose which backup you want to restore from — the list shows your most recent backups first, with the date and iPhone model.

Your iPhone will read the backup and restore everything: photos, messages, contacts, app data, and settings. This takes 30 minutes to several hours depending on your internet speed and how much data you have. Do not unplug or turn off the phone during this time. Apps will read in the background after the restore is complete.

If you are restoring to the same iPhone after a factory reset, go to Settings, your name, iCloud, and tap "Sign Out". Choose "Keep on My iPhone" when asked about iCloud data. Then go back to Settings, your name, and sign in again. You will see an option to restore from backup.

How to restore from a computer backup

Plug your iPhone into the same computer where you made the backup. On a Mac, open Finder and click your iPhone in the sidebar. On a Windows PC or older Mac, open iTunes and click the iPhone icon. Under "Backups", you will see a list of backups with dates. Click "Restore Backup" and choose the backup you want to restore from.

If the backup is encrypted, you will be asked for the password you set. Enter it and click "Restore". Your iPhone will restart and restore everything from that backup. This takes 30 minutes to an hour. Do not unplug the phone until the process is complete and your home screen appears.

Computer backups are stored in a folder on your hard drive. On a Mac, they are in Library/process Support/MobileSync/Backup. On Windows, they are usually in AppData/Roaming/Apple Computer/MobileSync/Backup. You can copy this folder to an external drive or cloud storage for extra safety, but do not move or rename it or the backup will not work.

What to do if a backup is too old or corrupted

If you have not backed up in months and your phone breaks, you will lose recent photos and messages. If you suspect a backup is corrupted — for example, if you restore and apps crash repeatedly — try restoring from an older backup instead. On iCloud, choose a backup from a few days before the problem started. On a computer, you can keep multiple backups by renaming the backup folder before making a new one.

If you have no backup at all and your phone is broken, a repair shop may be able to recover some data, but there is no may provide. This is why backing up regularly matters more than which method you choose. Set a reminder to plug your phone into a computer once a month, or check that iCloud Backup is still turned on every few weeks — it sometimes turns off after a software update.

Frequently Asked Questions

Can I back up my iPhone without wifi?

iCloud requires wifi, but a computer backup works over a USB cable with no internet needed. If you do not have reliable wifi, plug your phone into a computer monthly. You can also back up over a cellular connection if you turn off wifi and use a computer backup, though this is slower.

Will restoring a backup erase everything on my new iPhone first?

Yes. When you restore from a backup during setup, the new iPhone is blank to start with, so there is nothing to erase. If you restore to a phone that already has data on it, that data is replaced by the backup. If you want to keep both, do not restore — instead, sign into iCloud on the new phone and let it sync your data over time.

What happens to my apps when I restore?

Apps are not included in the backup. When you restore, your app data and settings come back, but the apps themselves read fresh from the App Store. This takes a few hours depending on how many apps you have. You will need your Apple ID password to read paid apps again.

Can I restore a backup from an older iPhone to a newer model?

Yes. You can restore a backup from an iPhone 8 to an iPhone 15, and everything will work. You can also restore a backup from a newer model to an older one, but some features may not work if the older phone does not support them.

How often should I back up?

If you use iCloud Backup, it happens automatically every day, so you do not have to think about it. If you use a computer backup, plug in once a month at minimum. If you take a lot of photos or have important messages, back up weekly.