Sync.com review: our verdict

This Sync.com review looks at the Canadian cloud storage service that has built its reputation on privacy. Sync's central promise is that your files are protected with end-to-end encryption, so the company itself cannot read them, while still giving you the everyday conveniences of mainstream cloud storage: desktop and mobile apps, file sharing with access controls, version history and deleted file recovery. For individuals and small teams who store contracts, financial records, medical paperwork or client files, that combination is hard to beat, which is why we rank it as our pick for privacy.

It is not the right tool for everyone. Sync syncs a single folder rather than any folder you choose, it has fewer third-party integrations than Dropbox, Google Drive or OneDrive, there is no Linux desktop app, and independent speed measurements disagree about how quickly it uploads. Strong encryption also puts more responsibility on you: forget your password without a recovery option set and your data may be unrecoverable.

NerdBible did not run its own hands-on trial for this review. It is an editorial assessment based on Sync's own plans, security, privacy and help pages and on the published findings of independent outlets, which we credit and link below.

What is Sync.com and who is it for?

Sync.com is a cloud storage and file sharing service. The Sync homepage describes it as cloud storage built for privacy, with end-to-end encryption, sharing and collaboration, a branded client file portal, files on demand through Sync CloudFiles, and real-time backup with file restore. The Sync about page says the company was founded with the goal of creating a secure cloud storage platform with privacy protection built in, first for individuals and then for businesses.

It suits:

  • Privacy-conscious individuals. People who want their documents stored where the provider cannot scan or read them.
  • Professionals with confidential client files. Accountants, lawyers, therapists and advisers who need password-protected links, expiry dates and a professional portal for sending and receiving documents.
  • Small teams. Team plans add admin controls, role-based access and shared folder management.

It is less suited to people who want deep integration with dozens of other apps, those who need fine-grained folder sync on a desktop, and Linux users who want a native client.

Key features

End-to-end encrypted storage

Sync's secure cloud storage page says it uses end-to-end encryption and zero-knowledge authentication to protect your data from unauthorized access, that it does not sell or share your data with advertisers, and that it does not claim ownership of your files. Its privacy policy says that, apart from strict exceptions it lists, Sync does not access or process the files you store or share.

Sharing with real controls

Sharing is where Sync stands out from many rivals. Its help article on managing shared link permissions explains how to add a password to a link, remove a link instantly, and set expiry dates on paid Pro plans. Independent reviewers also describe download limits, preview-only access and notifications when files are viewed or downloaded. For anyone who regularly sends sensitive documents to clients, these controls are more useful than headline storage numbers.

Backup, versioning and recovery

Sync backs up files in the sync folder in real time and keeps previous versions and deleted files for a period that depends on your plan. On the free plan the free storage page says recovery covers 30 days, and paid plans extend it considerably. That is a meaningful protection against accidental deletion and ransomware.

Apps and files on demand

Sync offers apps for Windows, macOS, iOS and Android, plus a web panel. Sync CloudFiles lets you browse cloud files in Windows Explorer or Mac Finder without storing them locally. The Vault is a cloud-only area for archiving files you do not want synced to every device.

Tools for teams and client work

Sync's team plans add the controls a small business needs to manage shared data. The plan comparison on Sync's pricing pages lists role-based access controls, file sharing data governance, group-level shared folder management and the ability to transfer account ownership when someone leaves. Tom's Guide reports that team plans include administrator accounts that can manage every user and view activity logs, and Cloudwards notes single sign-on support on team plans. The homepage also highlights a client file portal that carries your own logo, so clients can upload and download documents through a branded page rather than a generic link. For editing, TechRadar points to Microsoft 365 integration for live editing and collaboration on Office files stored in Sync, although Sync does not have its own office suite in the way that Google and Microsoft do. Together these make Sync a practical choice for a small practice that wants one private place for both internal files and client exchanges.

How much does Sync.com cost?

Our page shows current prices from our own data, so here is the structure. Sync has a free plan with 5 GB of storage, up to five devices, a few password-protected links and shared folders, and 30 days of file history. Paid personal plans, listed on the Sync pricing page for individuals, step up from 1 TB through larger tiers to an unlimited plan, and team plans are priced per user. Annual billing is cheaper than monthly, and the pricing page notes that promotional first-year rates renew at the regular price, so check the renewal figure before you commit. Paid plans carry a 30-day money-back guarantee, and Sync also advertises a 30-day free trial of its paid features.

Is Sync.com safe and private?

Sync's security approach is its main selling point. It says files are end-to-end encrypted and that it does not hold the keys needed to read them. It also publishes a SOC 3 report and says, on its SOC compliance page, that all plans include SOC compliance assessed by an independent third party. Its secure storage page lists two-factor authentication, remote device lockout and remote wipe, and says data is replicated across multiple SOC 2 certified data centre locations. Sync also states compliance with US, EU and UK GDPR, and Canadian rules, including data residency options.

Two caveats are worth understanding. First, zero-knowledge encryption means Sync cannot reset your password and recover your files for you unless you opt into its email-based password recovery. TechRadar notes that Sync warns about this when you set up an account, and CyberInsider points out that using the recovery feature briefly exposes your password to Sync, weakening the zero-knowledge model. A password manager is the safer way to avoid lockout. Second, the company is Canadian, which reviewers generally see as a privacy positive, though CyberInsider notes that some privacy advocates prefer services outside the Five Eyes intelligence alliance altogether.

What could be better

  • Single sync folder. Only files inside the Sync folder sync, so you may need to reorganize how you store documents.
  • Fewer integrations. Sync works with Microsoft 365 for editing, but third-party app connections are limited, and Cloudwards notes there is no WebDAV support.
  • No Linux desktop client. Linux users have to use the web panel.
  • Speed questions. At least one outlet measured Sync among the slower services it tested.
  • Support options. Phone support is limited to business hours and certain plans.

Who should choose something else?

If you live inside Google Workspace or Microsoft 365 and collaborate in real time all day, Google Drive or OneDrive will be smoother. If you are an Apple household that mainly wants photos and device backups handled automatically, iCloud does that natively. If you need maximum upload speed for very large media projects, compare speed tests before choosing. And if all you need is a little free space for non-sensitive files, almost any mainstream free tier will do.

Is Sync.com worth it? Bottom line

Sync.com is the cloud storage service we recommend when privacy matters most. Its end-to-end encryption, sharing controls, long version history and independent SOC reporting make it a strong home for sensitive documents, and its free plan lets you try it without paying. Accept its trade-offs, a single sync folder, fewer integrations and responsibility for your own password, and it is one of the safest places to keep files online.

What other reviewers found

  • TechRadar called Sync competitively priced with a rock-solid core and excellent security features, while wishing it could sync folders outside the main Sync folder.
  • Tom's Guide rated it a secure, easy-to-use option for people on a budget, praising sharing controls and file history, but flagged limited third-party integrations.
  • Cloudwards named Sync its favourite cloud storage overall and best for sharing, but found it among the slowest services in its own speed measurements.
  • CyberInsider praised its zero-knowledge network and Canadian base, but noted there is no Linux desktop client and that password recovery by email weakens the zero-knowledge model.

Where they agree: all four outlets agree that Sync's encryption and sharing controls are its standout strengths, and that its single-folder sync and limited integrations are the main compromises. Where they differ: speed is the clearest disagreement. Cloudwards measured slow transfers, while Tom's Guide said uploads were very quick and TechRadar described the service as speedy. The likely explanation is different test conditions and locations. For a buyer, that means privacy is the reason to choose Sync, and speed is worth checking yourself on the free plan with your own connection before moving a large archive.

Frequently asked questions

Is Sync.com really zero-knowledge?

Sync says its apps encrypt files end to end and that it does not hold the keys needed to read them, which is what zero-knowledge means in practice. The main exception is optional email-based password recovery: independent reviewers note that using it briefly exposes your password to Sync. If you want the strictest model, leave recovery off and keep your password in a password manager.

Does Sync.com have a free plan?

Yes. Sync's free plan includes 5 GB of storage, syncing across up to five of your own devices, a small number of password-protected links and shared folders, and 30 days of file history and deleted file recovery. Paid plans add far more storage, longer recovery, link expiry dates and team admin tools, and come with a 30-day money-back guarantee.

Where is Sync.com based and where is my data stored?

Sync is a Canadian company, and independent reviewers report that its data centres are in Canada, with copies replicated across more than one location. Sync's own pages say it supports US, EU and UK GDPR, and Canadian compliance requirements, including data residency options. If residency matters to your business, confirm the available regions with Sync before signing up.

Is Sync.com slower than Dropbox?

It depends on who measured it. Cloudwards found Sync among the slowest services in its own speed measurements, while Tom's Guide and TechRadar described uploads as quick. Encryption on your device adds some work, and results vary with location and connection. The free plan is the easiest way to check performance on your own network before you commit.

Can I recover deleted files on Sync.com?

Yes. Sync keeps previous versions of files and deleted files so you can restore them. On the free plan this covers 30 days, and paid plans extend the window significantly. Older versions do not count against your storage quota, according to TechRadar, which makes Sync a useful safety net against accidental deletion or ransomware.

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