The two ways to back up an iPhone, and which one protects you better

You can back up your iPhone in two ways: through iCloud (Apple's cloud storage) or through a computer using iTunes or Finder. iCloud backs up automatically if you turn it on, but it only stores 5 GB free — photos and videos eat that space fast. A computer backup takes more steps but stores everything without a size limit, and you own the file on your own device.

Most people use iCloud because it runs in the background. But if you have thousands of photos, a lot of videos, or you want a backup that doesn't depend on Apple's servers, a computer backup is more reliable. Many people do both: iCloud for daily automatic protection, and a computer backup once a month for a full safety net.

Key Takeaways

  • iCloud backs up automatically once you turn it on in Settings, but the free 5 GB fills up quickly if you have photos or videos.
  • A computer backup through iTunes (Windows) or Finder (Mac) stores everything without a size limit and doesn't depend on internet or Apple's servers.
  • iCloud backups encrypt your data by default, but a computer backup is only encrypted if you check the encryption box during setup.
  • You can restore from either backup if your phone breaks, gets lost, or you get a new one — but you cannot mix them (you pick one or the other).
  • If you use iCloud, check your storage in Settings > [Your Name] > iCloud > Manage Storage to see what is taking up space.

Setting up iCloud backup on your iPhone

Open Settings, 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 phone will back up automatically when it is plugged in, connected to Wi-Fi, and locked.

The first backup takes a while, sometimes an hour or more depending on how much data you have. After that, iCloud backs up only the changes — new photos, new messages, app data — so later backups are faster. You can also tap "Back Up Now" to start a backup when ready instead of waiting.

Check your iCloud storage before you rely on it. Go to Settings > [Your Name] > iCloud > Manage Storage. If you see "Almost Full" or "Full", your backup is not working because there is no room. You will need to either delete old photos and videos from your phone, or pay for more iCloud storage (50 GB is $0.99 a month, 200 GB is $2.99 a month).

Backing up your iPhone through a computer

Plug your iPhone into a Mac or Windows computer with a USB cable. On a Mac with macOS Monterey or newer, open Finder and click your phone's name in the sidebar. On Windows or older Mac, open iTunes instead.

Click "Back Up Now" or "Back Up This iPhone". The backup will take 10 to 30 minutes depending on how much data you have. Do not unplug the phone until the backup finishes — you will see a progress bar or a checkmark when it is done.

If you want to encrypt the backup (so your passwords and health data are protected), check the box that says "Encrypt local backup" before you start. You will need to create a password for the backup file — write it down, because you cannot restore the backup without it. An unencrypted backup stores everything except passwords and health data in plain text on your computer.

What gets backed up and what does not

Both iCloud and computer backups save your photos, videos, messages, contacts, calendar events, notes, reminders, app data, and settings. They also save your home screen layout, your keyboard dictionary, and your voicemail settings.

Neither backup saves apps themselves — when you restore, your phone downloads the apps again from the App Store. They also do not save data from apps that store information on their own servers (like Gmail, Slack, or banking apps). Those apps sync their own data separately.

iCloud does not back up music or movies you bought from iTunes, because those are tied to your Apple ID and read again automatically. A computer backup does save them, but only if you have them stored on your computer too.

Restoring from a backup when you get a new phone or reset your old one

When you set up a new iPhone or reset an old one, the setup screen will ask "Do you want to restore from a backup?" Choose iCloud if you backed up to iCloud, or choose "Restore from Mac/PC" if you backed up to a computer. Sign in with your Apple ID if prompted, and your phone will read everything from the backup.

Restoring from iCloud takes longer than restoring from a computer because it has to read everything over the internet. Restoring from a computer is faster because the data is already on the device you are plugged into. Either way, do not unplug or interrupt the restore — it can take 30 minutes to an hour.

After the restore finishes, your phone will look exactly like it did before — same apps, same photos, same messages, same home screen. Apps that store data on their own servers (like Gmail or banking apps) will sync their data once you sign in.

Checking that your backup actually worked

For iCloud: Go to Settings > [Your Name] > iCloud > iCloud Backup. You will see the date and time of your last backup. If it says "Back Up Now" instead of showing a date, the backup has not run yet. Make sure your phone is plugged in, connected to Wi-Fi, and locked, then wait a few minutes and check again.

For a computer backup: Open Finder (Mac) or iTunes (Windows), plug in your phone, and click your phone's name. You will see "Latest Backup" with a date and time. If the date is old, click "Back Up Now" to run a new backup.

If a backup keeps failing, the most common reasons are: not enough storage space (for iCloud) or a loose USB cable (for computer backups). Try unplugging and replugging the cable, or restart both your phone and your computer.

Frequently Asked Questions

Can I back up to iCloud and also back up to my computer?

Yes. You can use both at the same time — iCloud for automatic daily backups and a computer backup for extra safety. However, when you restore a phone, you have to choose one backup or the other, not both. Pick whichever one is most recent.

What happens to my old backup if I start a new one?

For iCloud, the new backup replaces the old one — you only have one iCloud backup at a time. For computer backups, each new backup replaces the old one in the same location, unless you manually save the old backup file with a different name first.

Do I need to pay for iCloud backup?

The first 5 GB is free. If you have more than 5 GB of data, you pay for more storage. A computer backup costs nothing — it just uses space on your computer's hard drive.

Can I back up my iPhone if I do not have a computer?

Yes, use iCloud. It is the only backup method that does not need a computer. Just make sure you have enough iCloud storage for all your data, or pay for more.

What if I forgot the password for my encrypted computer backup?

You cannot restore that backup without the password. You will have to set up your phone as new and restore from iCloud instead, or restore from an older unencrypted backup if you have one. Write down backup passwords and store them somewhere safe.