Sync.com

Yes — it's one of the safest mainstream options. Sync.com encrypts everything end-to-end with zero-knowledge encryption, so not even Sync can read your files, and it's based in Canada under strong privacy laws. Just remember that with zero-knowledge, losing your password and recovery options can mean losing access.

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Sync.com has a free plan with 5 GB, and paid personal plans start at US$8/mo (cheaper when billed yearly) with terabytes of encrypted storage. Business and team plans, which add admin controls and more space, cost more per user. Because promotions change, check the live pricing on Sync.com's official site before you buy. For end-to-end zero-knowledge encryption, it's one of the best-value options around.

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Both sync, store and share files, but they take different approaches. Sync.com is end-to-end, zero-knowledge encrypted by default, so only you can read your data; Dropbox is not zero-knowledge and can technically access your files. Sync.com is also usually cheaper per terabyte. Dropbox counters with a slicker app, faster block-level sync for large files that change often, and a much bigger library of third-party integrations. In short: choose Sync.com for privacy and value, Dropbox for ecosystem, collaboration and raw sync speed.

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Yes. Sync.com offers a free plan with 5 GB of fully end-to-end encrypted storage and no time limit, and you can earn a little extra space through referrals. It's a real free tier, not a trial. Paid plans add far more space, longer file history and features like password-protected sharing.

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Your files are encrypted on your own device before they're uploaded, and the keys are tied to your password and held only by you. Sync's servers store nothing but encrypted data, so neither the company nor anyone who breached it can read your files — that's what 'zero-knowledge' means. The trade-off is real: because Sync never sees your key, if you lose your password and your recovery options there's no way to reset access, and your data can be lost. Keep your recovery details somewhere safe.

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Right-click any file or folder in the web app, desktop client or mobile app and choose to create a share link. You can protect that link with a password, set an expiry date, and cap the number of downloads. There's no limit on transfer size, so it handles large files that email would reject, and recipients don't need a Sync account to download. For ongoing work you can instead share a folder directly with another Sync user, with view or edit permissions.

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Yes. Sync.com supports HIPAA compliance on its business and teams plans and will sign a Business Associate Agreement (BAA), which its end-to-end encryption makes straightforward. That makes it a practical choice for clinics, therapists and others handling protected health information. Always confirm your specific plan qualifies and sign the BAA before you store any PHI.

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