What Is the Cloud, Anyway? A Plain-English Guide for Families
What 'the cloud' actually means, how iCloud, Google Drive and OneDrive store your family's photos and files, and how to keep cloud accounts private and secure.
"It's in the cloud" has become an everyday phrase, but it's surprisingly vague. Photos vanish from a phone and reappear on a laptop. A child's tablet suddenly shows a parent's messages. Storage fills up and a pop-up asks for a monthly fee. Understanding what the cloud is makes all of these easier to manage, and helps you protect your family's privacy.
The short answer
"The cloud" is simply other people's computers. When you save a file to the cloud, it's copied over the internet to servers owned by a company like Apple, Google, Microsoft, Amazon or Dropbox. Those servers sit in large data centers. Because the file lives there rather than only on your device, you can open it from your phone, tablet, laptop or a web browser by signing in to your account.
It's called the cloud because, for most of us, it doesn't matter where the servers physically are. They're just "out there," like a cloud on a diagram.
What families use the cloud for
- Photo and video backup. iCloud Photos and Google Photos upload pictures automatically so they survive a lost or broken phone.
- Device backups. iPhones and Android phones can back up settings, messages and app data so a new phone can be set up in minutes.
- Documents and schoolwork. Google Docs, Microsoft 365 and Apple's apps save work online, which is why kids can start an essay at school and finish it at home.
- Syncing. Contacts, calendars, notes, passwords and browser bookmarks stay the same across devices.
- Streaming. Music, movies and games stream from servers rather than being stored on the device.
- Sharing. Shared albums, folders and family calendars let everyone see the same things.
The big three services
| Service | Comes with | Free storage |
|---|---|---|
| iCloud | Apple Account (iPhone, iPad, Mac) | 5 GB |
| Google Drive / Google One | Google Account (Android, Chromebook, Gmail) | Up to 15 GB, shared across Gmail, Drive and Photos |
| OneDrive | Microsoft account (Windows) | Free tier included; more with Microsoft 365 |
Free tiers fill up quickly once photos and phone backups are included, which is why paid storage plans are common. Apple's and Google's family storage plans can be shared with family members, so each person doesn't need their own subscription.
Common family surprises, explained
"Why are my messages showing up on my child's iPad?"
The device is probably signed in to your Apple Account. Anything synced to that account, like messages, photos, notes and browsing history, appears on every device using it. The fix is to give your child their own account, linked through Family Sharing. Our article on the pros and cons of iOS Family Sharing explains how.
"I deleted a photo on my phone and it disappeared everywhere."
That's syncing working as designed. With iCloud Photos or Google Photos sync on, deleting a photo on one device deletes it everywhere. Deleted items usually sit in a "Recently Deleted" or trash folder for a limited time first, so check there quickly.
"My storage is full."
Old phone backups, videos and duplicate photos are usually the culprits. Your storage settings show what's taking up space, and you can delete old device backups you no longer need.
Keeping your family's cloud accounts secure
The cloud companies protect their data centers well. The weak spot is almost always the account login.
- Use a strong, unique password for each cloud account.
- Turn on two-factor authentication. Apple Accounts have it by default; Google and Microsoft let you turn it on in their security settings.
- Keep recovery details current, like your phone number and recovery email.
- Review signed-in devices and remove old phones and computers you no longer use.
- Be careful with shared links. "Anyone with the link" sharing means exactly that.
Our guide to protecting your privacy online covers account security in more depth.
The cloud and kids' privacy
A few things to think about for children:
- Photos often carry location data. Shared albums and uploads can reveal where photos were taken unless location is removed.
- Shared albums can be wide open. Check who can see and add to any album your child shares.
- School accounts are different. A school-issued Google or Microsoft account is managed by the school, which can see and control its contents.
- A child's account should be their own. Shared logins make it hard to apply age-appropriate settings and blur privacy for everyone.
When the cloud isn't the answer
Cloud storage relies on an internet connection and a company's ongoing service. For irreplaceable family photos, many people keep a second copy on an external drive at home. If a cloud account is ever locked or a service changes its terms, the local copy is still there.
Quick checklist
- Know which cloud service each family device uses.
- Give each child their own account linked to your family group.
- Turn on two-factor authentication for every cloud account.
- Check storage settings and delete old backups.
- Review shared albums and links.
- Keep a second copy of your most important photos.
If you want a broader starting point, our five simple actions to keep your family safe online pairs well with this list.
Frequently asked questions
What does it mean to store something in the cloud?
It means your files are saved on a company's servers in data centers and reached over the internet, rather than only on your own device. You can get to them from any device signed in to your account.
How much free cloud storage do iCloud and Google offer?
iCloud includes 5 GB free per Apple Account. Google offers up to 15 GB of free storage shared across Gmail, Google Drive and Google Photos, though some new accounts may need to verify a phone number to get the full amount.
Is the cloud safe for family photos?
Major cloud services are generally secure, but the weak point is usually the account. Use a strong unique password and two-factor authentication, and check what's shared with whom.