Proton Drive
Proton AG
Encrypted cloud storage for files you keep away from AI services.
Proton Drive costs €3.99/mo for the Drive Plus (annual) plan. There is also a free version.
This button can earn us a commission. You pay the same price.
Price
From €3.99/mo · Free version available
Last checked
September 2026
Best for
Keeping private documents away from big tech
Category
Private AI and encrypted apps
About Proton Drive
Proton Drive encrypts your files, file names included, on your own device before anything is uploaded. Proton holds no key to them, so the provider has nothing it could read, scan or feed into an AI system. It fits anyone who keeps tax returns, ID scans, contracts or client records in the cloud and would rather not hand them to a big tech provider. Share links can carry a password and an expiry date. Proton is based in Switzerland, outside US and UK jurisdiction. The drawback is space. The free plan stops at 5 GB, so a real photo or document archive means paying for Drive Plus or Proton Unlimited.
Proton Drive pricing
On the Drive Plus (annual) plan, Proton Drive costs €3.99 a month or €47.88 a year. A free version exists too. Proton Unlimited (annual), the highest plan listed here, comes to €119.88 a year. Read on the provider’s pricing page on September 22, 2026; a monthly subscription can cost more than the yearly rate.
Each plan as the provider lists it, in the currency it showed us, with the date we read it.
Proton Free
- 5 GB encrypted storage
- Online document and spreadsheet editor
- End-to-end encryption on every file
Drive Plus (monthly)
- 200 GB encrypted storage
- Restore earlier file versions for up to 10 years
- Share links with password and expiry date
Drive Plus (annual)
- 200 GB encrypted storage
- Restore earlier file versions for up to 10 years
- One payment every 12 months
Proton Unlimited (annual)
- 500 GB encrypted storage
- Proton VPN included
- One payment every 12 months
“Proton Drive suits anyone who wants private documents out of reach of the company that stores them. Encryption happens on your own device, the storage code is open source and checked by independent experts, and Swiss law applies. The catch is room: 5 GB free fills up fast, so most people end up paying.”Editorial team, via AISafeCheck
Where to get it
From €3.99/mo
You sign up and pay on the provider’s own site.
Prices last checked on
This button can earn us a commission. You pay the same price.
Where we earn from a click, it says so under the button.
More private AI assistants and encrypted apps
View allFrequently asked questions
Can Proton read or use my files in Proton Drive?
No. Files and file names are encrypted on your device before upload, and only you hold the keys, so Proton cannot open them. That also means the provider cannot scan your documents for ads or pass them to an AI system. The storage code is open source and checked regularly by independent experts, so this claim does not rest on trust alone.
Is there a free version of Proton Drive?
Yes. Proton Free gives you 5 GB of encrypted storage plus an online editor for documents and spreadsheets. When that runs out, Drive Plus raises the limit to 200 GB and lets you restore earlier versions of a file for up to ten years. Proton Unlimited goes to 500 GB and adds Proton VPN.
Where is Proton Drive based and which privacy law applies?
Proton Drive is run by Proton AG in Geneva, Switzerland, and Swiss privacy law applies to your files. That keeps them outside US and UK jurisdiction. Together with encryption on your own device, it makes Proton Drive a fit for people who want both a legal and a technical barrier between their documents and outside parties.
Where we earn from a click, it says so under the button. Prices are what the provider showed on its own pricing page on the date given; its checkout has the final word, including tax.