Your phone is full. Your laptop is full. And every service is offering to solve the problem for £9.99 a month. But what is cloud storage, and which is cheapest in the UK? The answer isn’t as simple as comparing price tags, because the cheapest option depends entirely on what you’re storing, how much of it there is, and which devices you use.

I’ve used all the major services over the years — sometimes several at once — and the price differences are smaller than you’d think, while the practical differences are bigger. Here’s the no-nonsense breakdown.

What Is Cloud Storage, Exactly?

Strip away the marketing and cloud storage is simple: it’s someone else’s hard drive, accessed over the internet. Instead of your files living only on your phone or laptop, copies live on servers in data centres, and you access them from any device. Delete a photo from your phone, it’s still in the cloud. Lose your laptop, your documents survive.

The main things people use it for:

• Photo backup — automatic backup of every photo you take (see our guide to backing up photos from Android).
• File syncing — documents available on phone, laptop and tablet, always up to date.
• Sharing — sending large files that won’t fit in an email.
• Device backup — full phone backups so a lost or broken handset isn’t a catastrophe.

The Main Cloud Storage Options Compared (UK Prices)

Prices change, so treat these as a guide — but the relative ranking has been stable for a while:

Google One (Google Drive + Photos)

• Free: 15GB (shared across Drive, Photos and Gmail)
• 100GB: ~£1.59/month
• 200GB: ~£2.99/month
• 2TB: ~£7.99/month

Best for: Android users and anyone who lives in Gmail/Google Docs. The 15GB free tier is the most generous going, and Google Photos’ search is unmatched. Watch out for: that 15GB is shared with Gmail — a decade of email with attachments eats it fast.

iCloud+

• Free: 5GB (frankly inadequate)
• 50GB: £0.99/month
• 200GB: £2.99/month
• 2TB: £8.99/month

Best for: iPhone/iPad/Mac users — device backups and photo sync are deeply integrated and just work. Watch out for: the free 5GB is a joke (one iPhone backup exceeds it), and iCloud is clumsy on Windows and Android.

Microsoft OneDrive

• Free: 5GB
• 100GB: ~£1.99/month standalone
• 1TB: included with Microsoft 365 Personal (~£8.49/month or ~£84.99/year)

Best for: anyone who already pays for Microsoft 365 — the 1TB bundled with Office apps makes it the best value in cloud storage, full stop. If you’re paying for Office anyway and not using the terabyte, you’re leaving money on the table. Watch out for: poor value as a standalone purchase if you don’t need Office.

Dropbox

• Free: 2GB
• 2TB: ~£9.99/month (Plus plan)

Best for: rock-solid syncing and sharing — Dropbox’s sync engine remains the most reliable in the business, and its sharing features are excellent for work collaboration. Watch out for: it’s the most expensive per gigabyte by a clear margin, and the free tier is tiny. Hard to recommend on price alone.

pCloud — the “pay once” option

• Free: 10GB
• Lifetime plans: one-time payment (~£150–£350 depending on size and offers) for permanent storage

Best for: people who hate subscriptions. pCloud’s lifetime plans work out cheaper than 3–4 years of monthly payments elsewhere. Swiss-based with strong privacy credentials. Watch out for: the upfront cost stings, and “lifetime” means the company’s lifetime — a calculated risk, though pCloud has been around since 2013.

So Which Is Cheapest? It Depends on You

• Cheapest for Android users: Google One — 100GB at £1.59/month is the best cheap tier going.
• Cheapest for iPhone users: iCloud+ 50GB at £0.99/month — if 50GB covers you (it won’t if you shoot lots of video).
• Cheapest overall if you need Office: Microsoft 365 with 1TB — unbeatable bundled value.
• Cheapest long-term: pCloud lifetime — if you’d rather pay once and be done.
• Cheapest for heavy photo users: Google One 2TB or iCloud+ 2TB depending on your phone — both ~£8–9/month.

Money-Saving Tips Most People Miss

• Don’t pay for storage you can free up. Before upgrading, clear out what’s actually using the space — old email attachments, forgotten downloads, duplicate photos. Our guide to deleting old Gmail emails in bulk alone has freed gigabytes for people I know.
• Use “storage saver” quality for photos. Google Photos’ compressed tier looks identical on screens and uses a fraction of the space of original quality. Unless you’re printing large format, you won’t see the difference.
• Pay annually, not monthly. Most services offer ~15–20% off for annual billing.
• Check for bundled storage. Some broadband and mobile contracts include cloud storage — check before paying separately.
• Split by purpose. There’s no rule saying all your storage must be with one provider. Photos on Google, documents on OneDrive, device backup on iCloud — use each service’s free tier strategically.

A Word on Privacy and Security

Your files sit on someone else’s servers, so the provider matters. All the major services encrypt data in transit and at rest, but most hold the encryption keys themselves — meaning they could access your files (for Google and Microsoft, automated scanning is part of how their services work). If that bothers you, look at zero-knowledge providers like pCloud (with the optional Crypto add-on), Tresorit or Proton Drive, where only you hold the keys. Whatever you choose, protect the account itself with two-factor authentication — your cloud account is one of the most valuable targets a hacker can hit.

For independent, regularly updated comparisons, Which?’s cloud storage reviews are worth checking before you commit to a paid plan. But for most people, the answer is simple: use whatever integrates with the devices you already own, start with the free tier, and only pay when you’ve genuinely outgrown it.

What Is Cloud Storage and Which Is Cheapest in the UK? FAQs

Is free cloud storage enough? For light users, often yes — Google’s 15GB free tier covers thousands of photos at storage-saver quality plus documents. You’ll outgrow it if you shoot lots of video, keep years of email with attachments, or back up multiple devices. Most people hit the limit within 1–3 years.

Can I trust cloud storage with important documents? The major providers (Google, Apple, Microsoft, Dropbox) have excellent security track records and redundancy — your files are safer there than on a single laptop hard drive. For genuinely sensitive documents, add your own encryption or use a zero-knowledge provider.

What happens if I stop paying? You don’t lose your files immediately — providers typically give a grace period (30–90 days) to download or downgrade. But uploads and syncing stop, and eventually the account may be restricted. Keep a local copy of anything irreplaceable regardless.

Is it better to have one provider or several? One primary provider keeps life simple — single bill, single login, everything integrated. But using free tiers strategically across providers (photos on Google, documents on OneDrive) can delay paying anything at all. There’s no wrong answer; just don’t scatter files so widely you can’t find them.