Proton Drive encrypted cloud storage service arrives on mobile • TechCrunch

Proton, the Swiss company behind a range of privacy-focused online services, has officially brought its end-to-end encrypted (E2EE) cloud storage service to mobile.

Founded in 2014, Proton was initially all about an encrypted Gmail alternative called Proton Mail, but in the intervening years the company has launched its own VPN and sought to replicate various Google services with a privacy twist, including a calendar which it launched on the web back in 2020 before bringing it to mobile this year. Proton also introduced a cloud storage service to the mix on the web back in September after an extended beta period, and now it’s rolling out on Android and iOS.


What’s particularly notable about Proton Drive is that it is a zero-knowledge encrypted cloud storage and file-sharing service, meaning that nobody outside of the sender or recipient can intercept any data anywhere in the process. This positions Proton Drive favorably in a space that includes well-established incumbents such as Google Drive, Microsoft’s OneDrive, and Dropbox. The latter of these, however, recently announced plans to bring E2EE to its own cloud storage service, but that is likely still a long way off, plus it will only be offered as a perk to business subscribers.

There are inherent challenges of introducing end-to-end encryption into cloud storage services, particularly across multiple platforms (including the web), which goes some way toward explaining why most companies operating in the space don’t offer E2EE. For starters, it requires building entirely new frameworks for handling the passing of data between point A and point B without risking exposing any of the data to the intermediary service provider. It usually requires more memory and computing power, and E2EE is generally more expensive as it’s more difficult to compress data, which in turn leads to greater infrastructure and storage costs.

Proton Drive, like most of Proton’s services, ships with a basic free version that gives users 1GB of cloud storage. Users can upgrade to 500GB of encrypted storage via the $9.99 monthly Proton Unlimited plan, which also ushers in premium incarnations of its sister products including Proton Mail, Calendar, and VPN. There is a separate standalone Proton Drive subscription that’s available for $3.99 per month, which has a 200GB storage limit.

Proton Drive for mobile

All this has been part of Proton’s roadmap for a while: some people might be happy to pay for a privacy-focused email service, but many more people will be willing to commit to a monthly subscription if it includes a bunch of value-added services. Yup, bundling works.

It’s worth noting here that plans are afoot for a Proton Drive desktop app in the future, with an early version of the Windows app expected to surface for beta testers before the end of 2022. The MacOS app, meanwhile, will likely rear its head some time in the first half of 2023.

Proton Drive quietly rolled out for all Android users over the weekend, and it’s available for iOS users as of today.

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