Tresorit Review 2026: Zero-knowledge cloud storage for individuals and regulated businesses
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Tresorit
Pros
- ISO 27001:2022 certified, audited by TÜV Rheinland, and signs HIPAA BAAs
- Free Basic plan with 3 GB, no expiring trial and no credit card needed
- Zero-knowledge end-to-end encryption, two-factor authentication and granular permissions on every plan
- 14-day free trial of any plan without limitations
Cons
- No money-back guarantee is stated; cancelling downgrades you to Basic
- Payment information is required even during the free trial
- Device caps of 2 on Basic and Personal Lite, and file size caps from 2 GB up to 20 GB depending on plan
- Business requires at least 3 users and Business Pro at least 5
Best for: Businesses needing HIPAA BAAs and data residency, Sharing sensitive files via encrypted links, Anyone who wants a free 3 GB zero-knowledge vault.
What it is
Tresorit is an end-to-end encrypted cloud storage and file-sharing service founded in 2011, headquartered in Switzerland with offices in Germany and Hungary, and part of Swiss Post’s digital business services. It has around 120 employees and says more than 11,000 organisations use it. The zero-knowledge design means Tresorit itself cannot see your files, and two-factor authentication and granular permissions are included on every plan.
Files are shared through encrypted links with tiered link security, and a free Gmail and Outlook plugin sends encrypted attachments even on the Basic plan. Business tiers add eSignatures, data rooms, audit logs, custom branding, data residency options, Single Sign-On and, on Business Pro, AzureAD and Okta provisioning, Active Directory and SIEM integration. Tresorit holds ISO 27001:2022 certification audited by TÜV Rheinland and signs HIPAA BAAs; its security page does not mention a SOC 2 report.
What it costs in practice
Basic is free with 3 GB, 500 MB per upload, two devices and 10 encrypted links a month, with no expiring trial and no card needed, though it is not intended for team or business use. Personal Lite is $4.75/mo yearly or $5.99/mo monthly for 50 GB on two devices with a 2 GB file limit. Personal Essential is $11.99/mo yearly or $13.99/mo monthly for 1 TB and 10 devices, and Personal Pro $27.49/mo yearly or $33.99/mo monthly for 4 TB.
On the business side, Professional is a single-user plan at $27.49/mo yearly, Business is $19/user/mo yearly with a minimum of 3 users, and Business Pro $24/user/mo yearly with a minimum of 5. Yearly billing is labelled 20% OFF. Any plan can be trialled for 14 days without limitations, but payment information is required during the trial. No money-back guarantee is stated; you can cancel at any time and are downgraded to Basic.
Key features
| Feature | What it does |
|---|---|
| End-to-end encrypted, zero-knowledge storage | Tresorit states that even it cannot see your data, on all plans. |
| Encrypted link sharing with tiered link security | Lite, Essential and Advanced Link Security, with 2 GB or 5 GB sharing via links depending on plan. |
| Gmail/Outlook encrypted attachment plugin | A free plugin for encrypted attachments is included on all plans, Basic included. |
| Enterprise identity integrations | Single Sign-On on Business; AzureAD and Okta provisioning, Active Directory and SIEM (Sentinel) on Business Pro. |
Tresorit pricing
| Plan | Price | Included |
|---|---|---|
| Basic (free) | Free | 3 GB, 500 MB per upload, 2 devices, 10 encrypted links per month; not intended for team or business use |
| Personal Lite | $4.75/mo yearly, $5.99/mo monthly | 50 GB, 2 GB max file size, 2 devices, 5 version history |
| Personal EssentialPOPULAR | $11.99/mo yearly, $13.99/mo monthly | 1 TB, 10 GB max file size, 10 devices, 10 version history. Labelled Most popular |
| Personal Pro | $27.49/mo yearly, $33.99/mo monthly | 4 TB, 10 GB max file size, 10 devices, 25 version history, detailed access logs |
| Professional (business) | $27.49/mo yearly, $33.99/mo monthly | For 1 user; 4 TB, 16 eSignatures for free, audit logs, custom branding |
| Business | $19/user/mo yearly, $24/user/mo monthly | At least 3 users; from 6 TB, 15 GB max file size, Single Sign-On, data residency options. Labelled Best value |
| Business Pro | $24/user/mo yearly, $30/user/mo monthly | At least 5 users; from 15 TB, 20 GB max file size, AzureAD and Okta provisioning, SIEM |
| Enterprise | Custom | Account manager, custom DPA, custom deployment, BYOA |
How Tresorit compares
| Alternative | How it differs |
|---|---|
| Proton Drive | Bundled into Proton Unlimited (500 GB) at $9.99/month yearly |
| Dropbox / Google Drive | Tresorit differentiates on zero-knowledge end-to-end encryption |
| Tuta Mail | Fellow European privacy vendor, for encrypted email rather than storage |
Tresorit ratings on other platforms
Independent user ratings from third-party review sites, linked here for transparency. These are not our editorial score, are captured on the date shown, and may have changed since.
Frequently asked questions
How much does Tresorit cost?
Basic is free with 3 GB. Personal Lite is $4.75/mo yearly or $5.99/mo monthly, Personal Essential $11.99/mo yearly or $13.99/mo monthly, and Personal Pro $27.49/mo yearly or $33.99/mo monthly. Business is $19/user/mo yearly for at least 3 users and Business Pro $24/user/mo yearly for at least 5. Yearly billing is labelled 20% OFF.
Can I try it before paying?
Yes, any plan can be trialled free for 14 days without limitations, but payment information is required during the trial. The free Basic plan has no expiry and needs no card. There is no money-back guarantee; cancelling a subscription downgrades you to Basic.
Verdict
Tresorit is the pick for organisations that need paperwork: a TÜV Rheinland ISO 27001:2022 certificate, HIPAA BAAs and identity integrations on the higher business tiers. The trade-off is price and friction: Personal Essential is $11.99/mo on yearly billing, a card is required even for the trial, and there is no refund guarantee. The free 3 GB Basic plan is a genuine no-strings way to test the encryption.
Facts verified against: tresorit.com, tresorit.com, tresorit.com, tresorit.com, tresorit.com (as of September 2026).
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