Proton Drive, currently in beta, is our new end-to-end encrypted cloud storage service available to everyone with a Proton account.
How to access Proton Drive
Go to drive.protonmail.com and sign in using your Proton login credentials.
Alternatively, you can access Proton Drive from your ProtonMail account. Simply log in to mail.protonmail.com, click the App Selector button in the top left corner of the web app, and select Proton Drive from the dropdown menu.

Frequently asked questions
Proton Drive beta is currently included as part of your paid plan. We will announce the final pricing at a later date. This will not affect prices for standard plans.
Currently, Proton Drive storage is shared with your ProtonMail account. For example, if you have a ProtonMail Plus account with a base storage of 5 GB, this same 5 GB will be shared with Proton Drive.
It is not possible to add storage specifically for Proton Drive at the moment. You can, however, add storage to your ProtonMail account, which will be shared with Proton Drive.
To do this, in the web app go to Settings → Dashboard → Customize subscription.
We plan to release Proton Drive apps for all major platforms. For the moment, you can access the Proton Drive web app on your mobile device using a browser.