The cloud storage market has been remarkably stable for years now, which is both a feature and a bug. The feature: the main services are all reliable, well-developed, and not going anywhere. The bug: it's difficult to make a strong case for switching if you're already embedded in one ecosystem, which means a lot of people are paying more than they need to or getting less than they could.
I've used all four of the major services – Google Drive, iCloud, Dropbox and OneDrive – as a primary or secondary storage solution at various points. This comparison is based on that experience plus the current pricing as of May 2026. Prices change; links decay. Check the current figures before making decisions.
The Main Four: A Comparison
| Service | Free Storage | ~100GB Price (monthly) | ~1TB Price (monthly) | Best For |
|---|---|---|---|---|
| Google Drive | 15 GB | ~£1.59 (100GB) | ~£7.99 (2TB) | Google Workspace users, Android |
| iCloud | 5 GB | £0.99 (50GB) / £2.99 (200GB) | £8.99 (2TB) | Apple ecosystem users |
| OneDrive | 5 GB | ~£1.99 (100GB) | £59.99/year via M365 (1TB) | Windows / Microsoft 365 users |
| Dropbox | 2 GB | No 100GB tier | ~£9.99 (2TB Plus plan) | Teams, cross-platform heavy users |
The pricing picture changes significantly when you look at what each service offers beyond raw storage, and that's where the real differences emerge.
Google Drive
Google Drive is the most useful general-purpose storage if you're already in the Google ecosystem. The integration with Docs, Sheets, and Gmail is genuinely seamless, and the 15GB of free storage – which is shared across Gmail, Drive and Photos – goes further than iCloud's 5GB.
The main weakness is privacy. Google's business model involves using data to serve advertising (via products like Google AdSense, which you've probably noticed on various websites including this one). Your Drive files aren't scanned for ad targeting, but if that general principle makes you uncomfortable, it's a fair reason to consider alternatives.
For collaborative document work, nothing comes close at this price point. The real-time collaboration in Google Docs remains class-leading.
iCloud
If you're entirely within the Apple ecosystem – iPhone, Mac, iPad – iCloud is the path of least resistance by a considerable margin. It's deeply integrated in ways that third-party services simply can't match: automatic device backups, iCloud Photos syncing, Keychain passwords, Notes, Reminders. All of it just works.
The 5GB free tier is stingy and deliberately so. Apple wants you upgrading to iCloud+. At £2.99/month for 200GB, it's reasonably priced, and the family sharing option (up to five family members share the storage) makes the 200GB and 2TB tiers much better value.
On Windows or Android, iCloud is significantly worse. The Windows app has improved but remains clunky compared to the native experience. Android support is basically just web access.
OneDrive
OneDrive's value proposition changed significantly when Microsoft started bundling 1TB of storage with Microsoft 365 Personal subscriptions. If you're already paying for Microsoft 365 for Word, Excel, Outlook and the rest – which a lot of people are, often without thinking about it – then you effectively have 1TB of cloud storage included.
The integration with Windows 11 is tight and generally good. Files on demand (keeping files in the cloud but accessible locally without downloading) works reliably. The collaboration features in Word and Excel are solid, though still slightly behind Google's equivalents for pure real-time collaboration.
If you're not already in the Microsoft ecosystem, there's not much reason to choose OneDrive over alternatives.
Dropbox
Dropbox pioneered consumer cloud sync and remains the best option for one specific use case: syncing files across a mix of platforms and operating systems, particularly in professional or team settings.
The core syncing engine is still excellent – faster and more reliable than Google Drive on desktop in most situations, with better handling of large files and complex folder structures. The Paper collaborative document tool is decent. Smart Sync (local-only file access without downloading) works well.
The problem is price. Dropbox's pricing has drifted upmarket. The free tier is barely usable at 2GB, and the lowest paid tier that gives you meaningful storage jumps straight to 2TB at roughly £9.99/month. For personal use, that's hard to justify unless you genuinely need the superior sync reliability.
Which Should You Choose?
Our recommendation by situation
iPhone/Mac user: iCloud, unless you collaborate heavily with non-Apple users. Windows/Microsoft 365 user: OneDrive – you're probably paying for it already. Heavy Google user or Android: Google Drive is the obvious fit. Professional or team needing cross-platform reliability: Dropbox, but check if the price increase is actually justified by the sync quality improvement for your use case.
One thing worth noting: none of these services is a substitute for a proper backup strategy. Cloud sync is not a backup – if you accidentally delete or corrupt a file, most services keep previous versions for 30–180 days depending on your plan, but that's not the same as a reliable offline or external backup. The old rule of 3-2-1 (three copies, two different media, one offsite) still makes sense for anything you genuinely can't afford to lose.