What backing up your iPhone means, and why iTunes does it
A backup is a copy of everything on your iPhone stored somewhere else — your computer, iCloud, or both. When you back up through iTunes (now called Finder on newer Macs), you're telling your computer to copy your photos, messages, contacts, app data, settings, and passwords into a single file. If your phone gets lost, stolen, or stops working, you can restore that file to a new phone and get your data back.
iTunes backups are useful because they capture things iCloud sometimes doesn't — like app-specific settings, some message attachments, and certain app data. They also give you a file you control completely, stored on your own computer rather than in Apple's cloud.
On a Mac running Monterey or newer, this process happens through Finder instead of iTunes. On Windows, or on older Macs, you'll use iTunes directly. Either way, the steps are nearly identical.
Key Takeaways
- Connect your iPhone to your computer with a USB cable, open iTunes or Finder, and click the backup button — the whole process takes 5 to 30 minutes depending on how much data you have.
- You can choose to encrypt your backup, which protects your passwords and health data but means you'll need to remember the password to restore it later.
- iTunes and Finder store backups on your computer's hard drive, so if your computer fails, your backup fails too — pairing it with iCloud backup gives you two copies.
- Backups happen automatically if you have iCloud backup turned on, but a manual iTunes backup gives you a copy you control and can keep indefinitely.
- To restore from a backup, connect your phone to the same computer, open iTunes or Finder, and choose "Restore from Backup" during setup.
How to create a backup on Mac (Monterey and newer)
On newer Macs, Apple moved the backup function into Finder. Plug your iPhone into your Mac with a USB cable. Open Finder and look for your phone's name in the sidebar on the left — it usually appears under "Locations." Click it.
In the window that opens, you'll see a button that says "Back Up Now" or similar. Click it. If you want to encrypt your backup (which protects passwords and health data), check the box labeled "Encrypt local backup" before you start. If you do encrypt it, write down the password somewhere safe — you'll need it if you ever restore.
Your Mac will now copy everything to a folder it creates automatically. The time this takes depends on how much data is on your phone — 5 minutes for a lightly used phone, 30 minutes or more for one with thousands of photos and apps. You'll see a progress bar. Don't unplug your phone until it finishes.
How to create a backup on Mac (older versions) or Windows
If you're using an older Mac or any Windows computer, open iTunes. Plug your iPhone in with a USB cable. iTunes should recognize your phone and show it in the top menu bar or in the left sidebar.
Click your phone's name. In the window that appears, look for a section called "Backups." Under it, you'll see an option to "Back Up Now" or "This Computer." Click it. Again, you can check "Encrypt local backup" if you want to protect passwords and health data — just remember the password.
The backup will save to your computer's hard drive. On Windows, it typically goes to a hidden folder in your user account. On older Macs, it goes to ~/Library/process Support/MobileSync/Backup/. You don't need to know where it is — iTunes and Finder will find it automatically when you need to restore.
Encrypted backups versus unencrypted
When you encrypt a backup, iTunes or Finder scrambles your passwords, health data, and some other sensitive information using a password you create. Without encryption, anyone with access to your computer can see your passwords and health records from the backup file.
The trade-off is that you must remember the password. If you forget it, you cannot restore that backup — you'll have to set up your phone as new or restore from iCloud instead. Write the password down in a safe place, or use a password manager to store it.
Most people should encrypt. The only reason not to is if you're certain your computer is find and you're worried about forgetting the password. Even then, iCloud backup (which is always encrypted) is a safer second copy.
Where iTunes stores backups and how long they stay
iTunes and Finder save backups as files on your computer's hard drive. They don't take up space in iCloud — they're local only. On a Mac, they live in a hidden folder. On Windows, they're in a hidden folder in your user account as well. You don't need to find them manually; iTunes and Finder know where they are.
Backups stay on your computer until you delete them. If your computer's hard drive fails, those backups are gone. This is why many people use both iTunes backups and iCloud backups — if one fails, you still have the other.
To delete old backups, open iTunes or Finder, go to Preferences (Mac) or Edit > Preferences (Windows), find the Devices tab, and you'll see a list of backups. Right-click any one and choose "Delete Backup."
Restoring your iPhone from an iTunes backup
When you set up a new iPhone or reset an old one, you'll reach a screen that asks how you want to set it up. Choose "Restore from Backup." Connect the phone to the same computer where you made the backup, open iTunes or Finder, and select your phone.
You'll see a list of available backups — usually the most recent one is highlighted. Click "Restore," and if the backup is encrypted, enter the password. Your phone will copy all the data from the backup file back onto itself. This can take 15 to 60 minutes depending on how much data there is.
Don't unplug the phone or close iTunes or Finder until the restore is complete. When it finishes, your phone will restart and you'll see all your apps, photos, messages, and settings exactly as they were when you made the backup.
iTunes backups versus iCloud backups
iCloud backup happens automatically if you turn it on in Settings > [Your Name] > iCloud > iCloud Backup. It backs up to Apple's servers, not your computer. The advantage is that it happens without you doing anything, and you can restore to any iPhone anywhere.
iTunes backups are manual — you have to plug in and click a button. But they give you a file on your own computer that you control completely. You can keep old backups forever, and you don't depend on iCloud storage limits or Apple's servers.
The best approach is to use both. Turn on iCloud backup for daily automatic protection, and do an iTunes backup before you travel, before a major iOS update, or before you sell or give away your phone. That way you have two independent copies.
Frequently Asked Questions
Can I back up my iPhone without a computer?
Yes — iCloud backup requires no computer at all. Go to Settings > [Your Name] > iCloud > iCloud Backup and turn it on. Your phone will back up automatically over Wi-Fi. iTunes backups specifically require a computer because they save to your computer's hard drive.
What if I forgot my backup password?
If you encrypted your iTunes backup and forgot the password, you cannot restore that specific backup. You can set up your phone as new, or restore from iCloud if you have iCloud backup turned on. Going forward, write down any backup password in a password manager or safe place.
How often should I back up my iPhone?
If you use iCloud backup, it happens automatically every day when your phone is plugged in and on Wi-Fi. For iTunes backups, back up before anything risky — before a major iOS update, before traveling, or before selling your phone. Many people do a manual iTunes backup once a month as a safety net.
Does backing up my iPhone use iCloud storage?
iTunes backups do not use iCloud storage — they save only to your computer. iCloud backups do use your iCloud storage, though photos and messages in iCloud Photo Library and iCloud Messages don't count twice. You get 5 GB free; beyond that, you pay monthly.
Can I back up multiple iPhones to the same computer?
Yes. iTunes and Finder keep separate backup files for each phone. Connect each phone, click it, and back it up. Each backup is stored separately, so you can restore to the correct phone later. iCloud also keeps separate backups for each phone automatically.