Tresorit

Not really any more. Tresorit used to offer a small free plan, but that's been retired — today you get a time-limited free trial rather than a permanent free tier, because the product is built as a paid, business-grade service. If a capable free encrypted plan is what you're after, MEGA (the biggest genuine free allowance here) or Proton Drive (up to 5 GB) serve that far better. Tresorit's value only really begins once you pay for its compliance-grade security.

See in the comparison →

Very — it's arguably the most institutionally trusted provider in this comparison. Tresorit is a Swiss company, founded in 2011 and majority-owned by Swiss Post (the Swiss national postal service) since 2021, with zero-knowledge end-to-end encryption across the whole account and a strong enterprise customer base that includes law firms, healthcare organisations and financial teams. Independent audits and ISO 27001 certification back the security claims. For institutional trust, it's about as reassuring as cloud storage gets.

See in the comparison →

Tresorit is used wherever file security is non-negotiable: end-to-end encrypted storage, sharing and collaboration for businesses, professionals and privacy-maximalist individuals. Its typical users are law firms, healthcare providers and finance teams that need more than encryption — granular access controls, expiring share links, watermarking, audit trails and device policies layered on top. It's less an everyday Dropbox replacement and more a compliance-grade vault for confidential material that has to stay confidential, whatever the regulatory stakes.

See in the comparison →

Yes — it holds our Most-secure badge for good reason: zero-knowledge end-to-end encryption on every file, Swiss jurisdiction, ISO 27001 certification and enterprise-grade controls like expiring links, watermarks and device policies. Not even Tresorit can decrypt your data, and independent reviews have verified its architecture. The price premium over consumer clouds buys exactly this level of assurance — which is why regulated professionals choose it. If your threat model is serious, it's one of the safest options money can buy here.

See in the comparison →

Mostly the encryption model. Dropbox encrypts your files but holds the keys itself, so it can technically access content — which is also why it integrates with hundreds of third-party apps. Tresorit is zero-knowledge: only you hold the keys, ruling out that whole class of risk (and, inevitably, some integrations). In practice, Dropbox is built for convenience, collaboration breadth and a huge app ecosystem; Tresorit is built for confidentiality and compliance. If you're sharing marketing files, Dropbox is smoother; if you're handling legal, medical or financial documents, Tresorit's model is the safer fit.

See in the comparison →

For individuals, usually yes. Proton Drive gives you the same zero-knowledge principle at a far lower price, with a real free tier and the wider Proton ecosystem behind it. Tresorit earns its premium — which starts from US$11.99/mo — with organisation-grade extras: admin controls, compliance certifications, audit trails and team policies that Proton's consumer product doesn't match. So the honest split is by use case: for personal privacy, Proton Drive is the better-value choice; for a regulated business that needs certifications and centralised administration, Tresorit is worth the extra.

See in the comparison →