How to Back Up Your iPhone So You Don't Lose Your Photos and Messages

The two ways to back up an iPhone: iCloud or your computer

You have two main routes to back up an iPhone. iCloud backup happens automatically over WiFi if you turn it on — Apple stores your photos, messages, contacts, and settings on their servers. Computer backup means plugging your iPhone into a Mac or Windows PC and using iTunes or Finder to save everything to that computer's hard drive. Most people use iCloud because it requires no cables and works in the background. Computer backup gives you a copy you physically control, stored nowhere but your own device.

The choice depends on what matters to you: convenience and automatic updates, or a backup that lives only on hardware you own. You can use both at the same time — they do not interfere with each other.

Key Takeaways

iCloud backup turns on in Settings > [Your Name] > iCloud > iCloud Backup, and then happens automatically whenever your iPhone is plugged in, locked, and on WiFi.
You get 5 GB of iCloud storage free; photos and messages count toward that limit, so most people pay for more storage if they back up regularly.
Computer backup requires plugging your iPhone into a Mac (using Finder) or Windows PC (using iTunes), and stores everything on that computer's hard drive instead of Apple's servers.
A computer backup takes 10 to 30 minutes depending on how much data you have, and you need to plug in and back up manually every time you want an updated copy.
If your iPhone is lost or broken, you can restore from either backup by signing into your Apple ID on a new phone or in setup.

Setting up iCloud backup on your iPhone

Open Settings on your iPhone. Tap your name at the top of the screen, then tap iCloud. Scroll down and tap iCloud Backup. Turn on the toggle next to "iCloud Backup" — it will turn blue.

Once iCloud Backup is on, your iPhone backs up automatically every night when the phone is plugged in, locked, and connected to WiFi. You do not have to do anything else. If you want to back up right now instead of waiting, stay in the iCloud Backup screen and tap "Back Up Now" at the bottom.

Check what is being backed up by going back to the iCloud screen (Settings > [Your Name] > iCloud) and looking at the list of apps. A toggle next to each app name means that app's data is included in your iCloud backup. Photos are backed up only if you have iCloud Photos turned on — that is a separate toggle in the same iCloud menu.

Understanding iCloud storage limits and costs

Apple gives you 5 GB of iCloud storage free. That includes your backups, photos (if you use iCloud Photos), email, documents, and anything else stored in iCloud. For most people, 5 GB fills up quickly — a full iPhone backup with photos can easily be 20 to 50 GB depending on how many photos and videos you have.

When you run out of space, iCloud stops backing up. You will see a warning in Settings that says "iCloud Storage Almost Full" or "iCloud Storage Full." At that point, you have two choices: delete old photos and files to free up space, or pay for more storage. Apple charges $0.99 per month for 50 GB, $2.99 per month for 200 GB, or $9.99 per month for 2 TB. The storage is shared across all your Apple devices — your iPhone, iPad, and Mac all use the same pool.

If you do not want to pay, computer backup is free and has no storage limit beyond what your computer's hard drive can hold.

Backing up your iPhone to a Mac

Plug your iPhone into your Mac using the USB cable that came with it. Open Finder and look for your iPhone in the sidebar on the left — it will appear under "Locations." Click on it.

In the window that opens, you will see a button that says "Back Up Now." Click it. Finder will copy everything on your iPhone — photos, messages, contacts, app data, settings — to your Mac. The first backup takes 10 to 30 minutes depending on how much data you have. Later backups are faster because Finder only copies what has changed.

If you want Finder to back up automatically every time you plug in your iPhone, check the box that says "Back up automatically" in the same window. You can also choose to encrypt the backup by checking "Encrypt local backup" — this adds a password so only you can restore from that backup.

Backing up your iPhone to a Windows PC

Plug your iPhone into your Windows PC using the USB cable. If you do not have iTunes installed, read it from the Microsoft Store or from apple.com. Open iTunes.

Your iPhone will appear in iTunes as a device icon. Click on it. In the window that opens, under "Backups," you will see a button that says "Back Up Now." Click it. iTunes will copy everything on your iPhone to your PC — this takes 10 to 30 minutes the first time.

If you want iTunes to back up automatically every time you plug in, check the box that says "Automatically sync when this iPhone is connected." You can also encrypt the backup by checking "Encrypt iPhone backup" — this protects the backup with a password.

What gets backed up and what does not

Both iCloud and computer backups include: messages and iMessage conversations, contacts, calendar events, reminders, notes, voice memos, photos and videos (if iCloud Photos is on for iCloud backup), app data, home screen layout, and settings like WiFi passwords and Face ID or Touch ID setup.

Neither backup includes: apps themselves (they re-read from the App Store when you restore), music or movies you bought from iTunes (they re-read), or anything stored only on your SIM card. If you use iCloud Photos, your photos are backed up to iCloud separately from your regular backup — turning off iCloud Photos does not delete the photos from iCloud, but it does remove them from your iPhone unless you also have them in your regular backup.

If you have apps that store data only in the app itself and not in iCloud, that data is included in your backup. When you restore, the app data comes back with it.

Restoring from a backup when you get a new iPhone

When you set up a new iPhone, you will be asked whether you want to restore from a backup. If you backed up to iCloud, choose "Restore from iCloud Backup" and sign in with your Apple ID. If you backed up to a computer, plug the new iPhone into that same computer, open Finder or iTunes, click on the iPhone, and click "Restore Backup."

Restoring takes 15 to 45 minutes depending on how much data you have. Your iPhone will restart during the process — let it finish without unplugging. When it is done, your photos, messages, contacts, and app data will all be there.

If your old iPhone is lost or broken, you can still restore from an iCloud backup on a new phone by signing in with your Apple ID during setup. You cannot restore from a computer backup unless you have access to that computer.

Frequently Asked Questions

Do I need WiFi for iCloud backup?

Yes. Your iPhone backs up to iCloud only when it is connected to WiFi, plugged in, and locked. If you are on cellular data, the backup will not happen. Make sure your WiFi is on and you are connected to a network before you expect the backup to run.

Can I back up to both iCloud and my computer at the same time?

Yes. They do not interfere with each other. You can have iCloud Backup turned on and also plug into your computer to back up to Finder or iTunes. Having both means you have a copy in two places — if one fails, you still have the other.

What happens to my backup if I stop paying for iCloud storage?

If your iCloud storage subscription expires, Apple keeps your backup for 30 days. After that, it deletes the backup but keeps your other iCloud data like email and documents. If you turn iCloud Backup back on within 30 days, your backup is still there.

How do I know if my backup is actually working?

For iCloud: go to Settings > [Your Name] > iCloud > iCloud Backup and look at the date under "Last Backup." It should be recent — usually within the last day or two if your phone is plugged in regularly. For computer backup: open Finder or iTunes, click on your iPhone, and look at the "Last Backup" date in the Backups section.

Can I delete old backups to save space?

For iCloud: go to Settings > [Your Name] > iCloud > Manage Storage, tap "Backups," and you will see a list of all your backups. Tap on one and choose "Delete Backup" to remove it. For computer: open Finder or iTunes, click on your iPhone, and look for a button or menu option to delete old backups — the exact location depends on your Mac or Windows version.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.