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Tresorit review — encrypted cloud storage for professionals

Who is this for? Professionals with confidentiality obligations — lawyers, notaries, healthcare providers, financial advisers — who need encrypted cloud storage with EU data residency and compliance support. For personal use, [Proton Drive](/en/reviews/proton-drive-review/) is the more accessible choice.

Price: Paid
Updated: March 2026

Tresorit review

Who is this for? Professionals with confidentiality obligations — lawyers, notaries, healthcare providers, financial advisers — who need encrypted cloud storage with EU data residency and compliance support. For personal use, Proton Drive is the more accessible choice.

No personal Tresorit trial completed — this review is based on documentation, independent audits, and community user experience. Own testing to follow.

Tresorit is a Swiss cloud storage service aimed at business users and professionals with confidentiality obligations — lawyers, notaries, healthcare providers, financial advisers. It distinguishes itself from competitors through the combination of end-to-end encryption, European data residency options, and an explicit focus on compliance.

What makes Tresorit different?

End-to-end encryption without exception. Tresorit encrypts files on the device before they are synchronised. The servers only see encrypted blocks of data — Tresorit cannot read your files, even under a legal order.

Swiss law. Tresorit operates from Switzerland, outside the EU and outside the US. Swiss privacy law is stricter than GDPR when it comes to foreign government access.

European data residency. Tresorit positions itself strongly around European data residency. The exact storage location depends on plan and regional settings; current storage is not simply “Amsterdam and Frankfurt” for everyone.

Sharing with external control. Tresorit supports sharing files with external parties via secure links — including password protection and expiry dates — without the recipient needing a Tresorit account.

Who is it for?

Well suited:

Lawyers and notaries who need to share client files under professional privilege
Healthcare providers looking for GDPR-compliant cloud storage for patient data
Accountants and financial advisers with confidential client data
Teams that want to securely exchange documents with external parties

Less suited:

Personal use — too expensive for individuals
Teams already in Microsoft 365 or Google Workspace — integration is limited
Freelancers without sensitive client data — Proton Drive is cheaper and sufficient

Pricing

Plan	Storage	Price	For whom
Individual	1 TB-class	Paid	Freelancers
Small Business	Per user	Paid	Teams
Business	Per user + admin	Paid	Larger teams
Enterprise	Custom	On request	Large organisations

Tresorit has no free tier. There is a 14-day trial period.

Comparison with alternatives

	Tresorit	Proton Drive	Nextcloud
End-to-end encrypted	Yes	Yes	⚠️ (with plugin)
Price	High	Low	Free (self-hosted)
Business focus	Yes	Limited	Yes
External sharing	Good	Basic	Yes
Technical knowledge needed	No	No	Yes
Data residency	Yes, European / regional options on higher plans	More limited, depending on Proton’s setup	Your choice

Recommendation: For personal use or small freelancers without sensitive client data: start with Proton Drive. For law firms, medical practices, or teams with professional privilege obligations: Tresorit justifies the higher price through its business functionality.

Security and audits

Tresorit has had independent security audits conducted. The encryption is based on AES-256 for stored data and TLS for transport, with key management entirely on the client side.

The zero-knowledge model is comparable to Proton Drive: the keys never leave the user’s device in decrypted form.

Caveats

Price and fit: Tresorit makes the most sense when confidentiality is part of your job, not just a general preference. For individuals and small freelancers without regulated or privileged client data, the price climbs faster than the practical benefit.

Ecosystem tradeoff: If your team already lives inside Microsoft 365 or Google Workspace, Tresorit will feel more like a secure parallel track than a seamless replacement. That can be the right tradeoff, but it is still a tradeoff.

This review is still partly documentation-led: The positioning is strong enough to review, but the note at the top remains important: this page is based on vendor documentation, audits, and community experience until hands-on testing is added.

Pros and cons

Pros

End-to-end encrypted with zero-knowledge architecture — Tresorit cannot read files even under a legal order
Swiss-law jurisdiction with European / regional data residency options depending on plan
Sharing files with external parties via secure links (password protection, expiry dates) without requiring a recipient account
Independent security audits conducted; AES-256 encryption with client-side key management
Business-oriented features for teams: admin controls, user management, compliance documentation

Cons

No free tier — only a trial period
Too expensive for personal use or freelancers without sensitive client data — Proton Drive is cheaper and sufficient
Poor integration with Microsoft 365 and Google Workspace — not a drop-in replacement for teams already in those ecosystems
Based on documentation and community experience, not personal testing (noted in the review)

Conclusion

Tresorit is not the general-purpose encrypted drive recommendation for everyone. It is the professional-storage recommendation for people who actually have confidentiality obligations and need a product that is built around that reality. If that is your use case, the higher price is defensible. If it is not, start with Proton Drive or a self-hosted route instead.