Sync.com

Best zero-knowledge

Zero-knowledge cloud storage from Canada.

Price US$8/mo

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IN SHORT

The privacy-first Dropbox alternative: independent Canadian cloud storage with end-to-end zero-knowledge encryption by default.

  • End-to-end zero-knowledge encryption
  • Great value (2 TB) plus a free 5 GB plan
  • Based in Canada with strong privacy laws
  • Easy file sharing with access controls
4.5 /5
Our rating

THE BRAND

Company
Sync.com, Inc.
Headquarters
Toronto (Canada)
Founded
2011
Group
Sync.com (independent)
Main product
Encrypted cloud storage and file sharing
Audience
Privacy-conscious users and small teams
Industry presence
Contact Email ticket support · Help center

ANALYSIS

Our experience with Sync.com

Security and privacy

Every file is protected with end-to-end zero-knowledge encryption by default — not even Sync.com can read your data. The company is based in Toronto and operates under Canada's strong privacy laws.

Free plan and value

A generous 5 GB free plan lets you try the service with no strings attached, and the paid tiers deliver a lot of fully encrypted storage for the money.

Speed and syncing

There is no block-level sync, so large files are re-uploaded in full after every change — updates can feel slower than Dropbox. The apps work fine but are less polished than the big-tech alternatives.

Who is it for?

Anyone who wants a Dropbox-style cloud — storage plus sharing with access controls — but with their files encrypted end to end by default.

PROS & CONS

The good and the bad

  • End-to-end zero-knowledge encryption
  • Great value (2 TB) plus a free 5 GB plan
  • Based in Canada with strong privacy laws
  • Easy file sharing with access controls
  • Apps less polished than Dropbox or Google
  • No block-level sync (slower large-file updates)
  • Not open source

FAQ

The most common questions Britons ask about Sync.com

Most-searched questions, per Sistrix

What is Sync.com used for?

Storing, syncing and sharing files — much like Dropbox, but with zero-knowledge end-to-end encryption switched on by default, so only you can read your data. Privacy-conscious individuals and small teams use it for exactly that pairing: a familiar drag-and-drop workflow with the contents locked down. You get synced folders across your devices, protected share links with passwords and expiry, and file recovery — the everyday conveniences, minus the provider ever being able to look inside your files.

See in the comparison →

How much does Sync.com cost?

Paid personal plans start at US$8/mo billed annually, giving you a full terabyte-plus of zero-knowledge encrypted storage, with larger and team plans above that. There's also a genuine 5 GB free tier to begin with. For fully end-to-end encrypted storage at this capacity, it's among the cheapest options anywhere — most rivals that match its privacy either cost more or hand you far less space. Annual billing is the way to get that headline rate.

See in the comparison →

Is Sync.com safe and secure?

Yes. Zero-knowledge end-to-end encryption is the default, so Sync.com technically cannot read your files — the decryption keys stay with you, not on its servers. It's a Canadian company, based in Toronto and founded in 2011, which puts your data under Canada's strong privacy laws. That combination — encrypted by default, a privacy-friendly jurisdiction, no big-tech owner — is why it's widely recommended for storing sensitive documents rather than trusting them to a mainstream cloud.

See in the comparison →

Who owns Sync.com?

Sync.com Inc. is independent — founded in Toronto in 2011 and still privately held by its founding team. There's no big-tech parent and no storage conglomerate behind it; the business runs on subscriptions, not on monetising your data, which fits its zero-knowledge, privacy-first positioning.

See in the comparison →

Is Sync.com free?

Yes, there's a genuine free plan — 5 GB with exactly the same zero-knowledge encryption as the paid tiers, and you can grow it a little through referrals. It's real, permanent storage rather than a time-limited trial, so for testing the service or keeping a folder of essential documents it works indefinitely. Serious capacity needs a paid plan, but the free option is honest and open-ended.

See in the comparison →

What are the disadvantages of Sync.com?

They're the trade-offs of an encryption-first design. There's no block-level sync, so a changed file re-uploads in full — slower for large, frequently edited files than Dropbox's delta sync. Third-party app integrations are thin, the apps are functional rather than beautiful, and there's no native Linux client. Your data lives in Canada, which is excellent for privacy but offers no UK residency. And live co-editing isn't its strength. For storage this private at this price, most people find those costs easy to accept.

See in the comparison →

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VERDICT

Is Sync.com right for you?

The privacy-first Dropbox alternative: independent Canadian cloud storage with end-to-end zero-knowledge encryption by default.

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