Proton Drive vs Tresorit
Two Swiss providers built for people who cannot afford a leak. One bundles a suite, the other sells compliance.
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Proton Drive
Swiss zero-knowledge storage from the Proton Mail people.
Tresorit
The encrypted cloud your lawyer would choose.
| Feature | Proton Drive | Tresorit |
|---|---|---|
| Our score | 4.4 / 5 | 4.3 / 5 |
| Price | From $9.99/mo | From $11.99/mo |
| Free plan | No | |
| Best for | Privacy-first users | Professionals with sensitive files |
| Category | Encrypted & private | Encrypted & private |
| Provider | Proton AG | Tresorit (Swiss Post) |
| Visit Proton Drive | Visit Tresorit |
Our verdict
Proton Drive wins on value and Tresorit wins when a client or a regulator is asking questions. Proton Unlimited is $9.99 a month, $119.88 a year, and scores 4.4. Tresorit Personal gives 1 TB at $11.99 a month, $143.88 a year, and scores 4.3.
That is $24 a year more at Tresorit for storage alone, while the Proton price also covers mail, VPN, calendar and a password manager. On money the case is not close.
What Tresorit sells is the paperwork around the encryption: audited compliance, granular access controls, and reporting that a legal or medical practice can put in front of an auditor. Both are zero knowledge and both sit under Swiss law, so the encryption itself is not the difference.
The honest downside of Tresorit is the price and a set of features aimed at organisations, most of which a private user will never touch. The honest downside of Proton Drive is that the storage component is the newest part of the suite and still behind Tresorit on granular sharing controls.
You handle client files under a professional duty of confidentiality: Tresorit, and treat the $24 as part of the compliance cost. Everyone else who wants private storage: Proton Unlimited.
“The privacy ecosystem play: zero-knowledge encryption by default, Swiss jurisdiction, and it comes bundled with the best private email and a top-tier VPN. Still younger and leaner on features than the veterans, but maturing fast.”Editorial team, on Proton Drive
“The business-grade vault: Swiss-Hungarian engineering, zero-knowledge everything, granular permissions, and compliance papers for every regulator. You pay roughly double the consumer rate for it, which professionals should and consumers need not.”Editorial team, on Tresorit
Frequently asked questions
Which is cheaper, Proton Drive or Tresorit?
Proton. Proton Unlimited is $119.88 a year against $143.88 for Tresorit Personal, a difference of $24. The gap is wider than it looks, because the Proton price also includes mail, VPN, calendar and a password manager, while Tresorit sells storage alone.
Are both really zero knowledge?
Yes. Both encrypt on your device so the provider stores files it cannot read, and both operate under Swiss law. The encryption itself is not what separates them. Tresorit adds audited compliance and granular access controls on top, which is what professional users are actually paying for.
Do I need Tresorit for personal files?
Almost certainly not. Its extras are aimed at organisations: access policies, audit trails and reporting for regulators. For personal documents, photos and tax records, Proton Drive gives you the same zero knowledge protection for $24 a year less, with a mailbox and a VPN included.