Tresorit

Tresorit competes in a very specific segment of cloud storage: it doesn’t aim to be the cheapest option or the most integrated with Office or Gmail, but the hardest to compromise from a privacy standpoint. This audit combines public product documentation (official website and pricing page) with verified user reviews on Capterra and G2, consulted in September 2026.

What Tresorit is and who it’s for

Tresorit is a cloud file storage, sync, and sharing service headquartered in Switzerland (owned by Swiss Post since 2021), built around zero-knowledge end-to-end encryption. Unlike Google Drive, Dropbox, or OneDrive — which encrypt data but retain the technical ability to access it — Tresorit encrypts and decrypts files on the user’s own device, so neither the company nor a third party who compromised its servers could read the content. This positions it directly against security- and compliance-focused competitors, and makes it a common choice for law firms, clinics, consultancies, and European companies with strict GDPR requirements.

What it’s like to use day to day

Installation and the basic experience — dragging files into a synced folder, sharing a link, inviting a collaborator — is comparable to any other cloud storage service. The admin panel for teams lets you manage authorized devices, remotely revoke access, and set granular per-folder permissions, something IT teams that need to audit who accesses what particularly value.

The counterpoint, noted in several recent reviews, is that sync can be slower than Dropbox or Google Drive, especially with large files or unstable connections, and the desktop app has shown intermittent bugs according to some users. These aren’t security limitations but performance ones, though they’re worth keeping in mind if the volume of files to sync is high.

Price: security comes at a cost

Tresorit offers a free Basic plan with 3 GB, enough only to try out the service. Paid individual plans start around $13.99/month for 1 TB and go up to $33.99/month for 4 TB, notably above Google One or Dropbox prices for equivalent capacity.

For businesses, the Business plan starts at $19 per user per month and Professional at $27.49 per user per month, both with a minimum of three users per account — a barrier to entry that penalizes freelancers or one- to two-person teams who want access to enterprise admin features. The Enterprise plan is custom-priced. Annual billing lowers the effective monthly cost compared with paying month to month.

Real user reviews

Tresorit holds a solid rating of 4.5 out of 5 on G2 with 267 verified reviews, of which 71% are 5 stars and 25% are 4 stars — only 3% sit at 3 stars or below. On Capterra and G2, users consistently highlight security as the standout strength: zero-knowledge encryption, the centralized admin panel, and device management draw recurring praise, especially from technical profiles and regulated businesses. Criticism concentrates on the sync and real-time collaboration experience — several users note version conflicts or slow updates — and on technical support, where some reviews mention slow follow-ups and frustrating experiences with the refund policy. It’s worth noting that people who have a bad experience are more likely to leave a review than those who are satisfied, so it’s reasonable to think these specific negative comments overrepresent the real average experience; even so, as of this audit (September 2026) this is the available data, and we report it honestly.

New in 2026: encrypted collaboration in Tresorit Engage

During 2026, Tresorit concentrated much of its releases on Engage, its end-to-end encrypted collaboration space designed for sharing documents with clients or external partners without leaving the protected environment. The most relevant updates include the ability to edit DOCX documents directly inside Engage rooms without needing to download them or route them through external tools — relevant for contracts, NDAs, or internal policies that must stay encrypted at all times — task-linked comments to coordinate work without relying on email, and “Pages,” a format for centralizing a project’s relevant information in one place inside the shared room. These are collaboration improvements rather than encryption improvements per se, but they reduce the friction that user reviews themselves flag as Tresorit’s weak spot compared with Dropbox or Google Drive.

Security and regulatory compliance

Tresorit builds its value proposition on ISO/IEC 27001:2022 certification, independently audited by TÜV Rheinland and recertified in 2024, which covers sales, development, maintenance, and support of its encrypted cloud services. Its Compliance Center further documents support for a broad catalog of regulatory frameworks: GDPR, HIPAA, and CCPA for data protection; NIS2 and DORA for critical infrastructure and the European financial sector; and more specific frameworks like TISAX (automotive industry), CJIS (US criminal justice), FINRA (securities), and ITAR (US defense export controls). Not all of these frameworks apply equally across every plan — several require requesting additional documentation from the sales team — but the catalog is notably broader than most encrypted storage competitors in this price range.

How it compares with other secure storage options

	Tresorit	Google Drive	Dropbox
Strength	Zero-knowledge encryption	Google Workspace integration	Collaboration and app ecosystem
Entry price (approx. 1 TB)	~$13.99/month	~$9.99/month (Google One)	~$11.99/month
Minimum users on business plan	3	1	1
Servers in the EU	Yes (Switzerland, Germany, Ireland)	Regional, no default EU guarantee	Regional

Frequently asked questions

Does Tresorit have a free plan? Yes, the Basic plan offers 3 GB free, meant to try out the service before committing to a paid plan.

What does zero-knowledge encryption mean? Files are encrypted and decrypted on the user’s device before being uploaded to the cloud; not even Tresorit holds the key to read their content.

Can a freelancer sign up for Tresorit Business? Business plans require a minimum of three users, so a freelancer would have to pay for three licenses even if only using one.

Where does Tresorit store data? In data centers located in the European Union (Switzerland, Germany, and Ireland), a relevant factor for companies subject to GDPR.

What security certifications does Tresorit have? ISO/IEC 27001:2022, audited by TÜV Rheinland and recertified in 2024, plus documented support for GDPR, HIPAA, CCPA, NIS2, DORA, TISAX, CJIS, FINRA, and ITAR depending on the use case.

What is Tresorit Engage? An end-to-end encrypted collaboration space for sharing documents with clients or external partners, which in 2026 added DOCX document editing inside the room itself and task-linked comments.

Methodology for this audit

This analysis is based on public product documentation (official website and pricing page) and verified real user reviews published on Capterra and G2, consulted in September 2026. It does not replace our own extensive testing with a long-term active account. You can read more in our editorial methodology.