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Make sense of iCloud, Google Drive, OneDrive and the rest
This guide is for anyone confused by iCloud, Google Drive, OneDrive, Dropbox and the storage-full messages that come with them. You will learn what cloud storage actually does, how to choose the service that fits the devices you already own, how syncing differs from backing up, and how to organise, share and protect your files. By the end you will have one clear home for your documents and photos instead of copies scattered everywhere.
Cloud storage simply means your files are kept on a company's computers (servers) in data centres, and you reach them over the internet. You can open the same file from your phone, laptop or a web browser on any computer, and if your device is lost or breaks, the files are still there.
Most services work by syncing. A special folder on your computer, or a section of your phone, is kept identical to your online storage. Add a file on one device and it appears on the others. Delete it on one device and it disappears from the others too. That last point surprises many people, and it is why syncing on its own is not the same as a backup.
| Term | What it means in practice |
|---|---|
| Sync | Keeps the same files on all your devices and online; changes and deletions copy everywhere |
| Backup | A separate copy kept so you can restore files if the originals are lost, damaged or deleted |
| Version history | Earlier saved versions of a file you can roll back to, kept for a limited time |
| Recycle bin or Trash | Deleted files held for a period, often around 30 days, before permanent removal |
| Files on demand | Files show on your computer but only download when opened, saving disk space |
All the big services do the basics well. The best choice usually depends on which devices you already use and which apps you work in, not on small differences in features. Free allowances and prices change regularly and vary by country, so check each provider's current plans page before paying.
| Service | Best fit | Things to know |
|---|---|---|
| iCloud Drive | iPhone, iPad and Mac users | Built into Apple devices; also backs up iPhones; a small free tier fills quickly |
| Google Drive | Android phones, Gmail and Google Docs users | Free storage is shared across Gmail, Drive and Google Photos |
| Microsoft OneDrive | Windows PCs and Microsoft 365 users | Built into Windows; larger storage often bundled with Microsoft 365 subscriptions |
| Dropbox | Mixed devices and sharing with others | Works the same on every platform; the free tier is small |
| Privacy-focused services | People who want end-to-end encryption by default | Some providers encrypt files so even they cannot read them; check features carefully |
Many households end up using two services, for example iCloud for iPhone backups and Google Drive for shared family documents. That is fine, as long as you know which one is the main home for each type of file.
Before committing, think about a few practical questions. Do you need to work on documents with other people at the same time? Google Drive and OneDrive both let several people edit the same document live. Do you mostly want somewhere safe for photos? Then look closely at the photo app each service offers, because that is what you will use every day. Do you care where your data is stored? Some providers let you see the region your data is held in, and some offer stronger encryption options. And how easy is it to leave? Every major service lets you download your files, but moving a large photo library can take a long time, so it pays to choose carefully at the start.
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