Google Drive vs OneDrive vs iCloud vs Dropbox: Which Cloud Storage?
Cloud storage keeps your files safe online and available on any device. The most popular services are Google Drive, Microsoft OneDrive, Apple iCloud and Dropbox. Each suits different users.
Quick comparison
| Service | Free storage | Best for |
|---|---|---|
| Google Drive | 15 GB (shared with Gmail and Photos) | Android users, Google Docs, students |
| OneDrive | 5 GB | Windows users, Microsoft Office |
| iCloud | 5 GB | iPhone and Mac users |
| Dropbox | 2 GB | File sharing and syncing across platforms |
Free allowances and prices change, so check each service's current plans.
Google Drive
Generous free space, excellent search and free Docs, Sheets and Slides. Works on all devices. Paid storage comes through Google One. See our Google Drive guide.
OneDrive
Built into Windows, with automatic backup of Desktop, Documents and Pictures. Microsoft 365 subscriptions include a large amount of storage plus full Office apps, which can be great value. Many universities give students free Microsoft 365.
iCloud
Seamless for iPhone backups, photos and Apple devices. iCloud+ plans add privacy features. Windows users can install iCloud for Windows, but Android support is limited. See managing iCloud storage.
Dropbox
Known for reliable syncing and easy sharing, popular with freelancers and designers. The free plan is small.
How to choose
- Android + Gmail user: Google Drive.
- Windows + Office user: OneDrive.
- iPhone + Mac user: iCloud.
- Mixed devices and heavy sharing: Google Drive or Dropbox.
Security tips
- Turn on 2FA for your cloud account.
- Be careful with "anyone with the link" sharing.
- Cloud sync isn't a complete backup; keep a second copy. See backup guide.
Features compared in more detail
| Feature | Google Drive | OneDrive | iCloud | Dropbox |
|---|---|---|---|---|
| Office apps included | Docs, Sheets, Slides | Word, Excel, PowerPoint (web; desktop with 365) | Pages, Numbers, Keynote | Integrations |
| Photo backup | Google Photos | OneDrive camera upload | iCloud Photos | Camera uploads |
| Version history | Yes | Yes | Limited | Yes |
| Windows integration | Drive for desktop | Built in | iCloud for Windows | Desktop app |
| Android app | Excellent | Good | Web only | Good |
Best options for students
- Check whether your university provides free Microsoft 365 or Google Workspace for Education storage.
- Use Google Drive for group projects; real-time collaboration in Docs is excellent.
- Keep a copy of important assignments outside your university account, since it may close after graduation.
Switching between services
Moving files is simple: download from one service to your computer and upload to another. For large libraries, Google Takeout exports all Google data, and most services' desktop apps let you drag folders in. Do it gradually and verify files before deleting the old copy.
Privacy considerations
Read how each provider uses your data. For highly sensitive files, consider encrypting them before upload, or use services with end-to-end encryption options, like Apple's Advanced Data Protection.
Frequently asked questions
Can I use more than one?
Yes. Many people use one for photos and another for documents.
What happens if I stop paying?
You usually can't add new files beyond the free limit. Check each service's policy on long-term over-quota accounts.
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