Proton Takes on Google Sheets With Encrypted Spreadsheets

According to Android Authority, Proton has launched a new end-to-end encrypted spreadsheet tool called Sheets, directly challenging Google Sheets and Microsoft Excel. The service is rolling out gradually to Proton Drive users starting now, so access isn’t immediate for everyone. It functions as a standard spreadsheet editor but encrypts everything, including file names and metadata. Proton states this means the company itself cannot view the contents of any sheet. The company is positioning this as a privacy-first alternative, arguing that tools from Google and Microsoft can expose business data to harvesting and AI training. This marks Proton’s continued expansion from encrypted email into a full suite of office productivity tools.

The Privacy Play

Here’s the thing: Proton’s pitch is powerful in an era of heightened data anxiety. The promise that your financial models, sales forecasts, or personal budgets are completely unreadable to the service provider is a massive differentiator. It’s not just about ads; it’s about keeping sensitive business intelligence truly confidential. And let’s be honest, after years of tech giants vacuuming up data, there’s a real market for this. For certain users—journalists, activists, healthcare professionals, paranoid startups—this could be a game-changer. The encryption of metadata, like filenames, is a detail power users will love. “Budget_Cuts_Q4.xlsx” can sometimes reveal as much as the numbers inside.

The Uphill Battle

But, and it’s a huge but, competing with Google Sheets and Excel is a monumental task. We’re not just talking about features; we’re talking about an entire ecosystem. Real-time collaboration is the lifeblood of modern Sheets and Excel. Can Proton’s encrypted architecture handle a dozen people editing a doc simultaneously without crippling lag or complexity? What about the vast library of integrations, add-ons, and formulas that businesses rely on? Proton’s tools have historically been fantastic for individual privacy but sometimes clunky for seamless team workflows. I have to wonder: will teams really migrate their core operational sheets to a new platform, even for privacy, if it breaks their existing automations and processes?

The Bigger Picture

Look, this is less about beating Google at spreadsheets and more about completing Proton’s vision as a private, sovereign alternative to the entire Google Workspace/Microsoft 365 duopoly. They now have Mail, Calendar, Drive, VPN, Pass, and Sheets. That’s a full stack. The real question is whether businesses will buy into a whole new ecosystem. For companies where data sovereignty is non-negotiable, this suite is becoming incredibly compelling. Basically, Proton isn’t just selling a spreadsheet; it’s selling a philosophy. The success of Sheets depends entirely on how many people and organizations decide that philosophy is worth the inevitable trade-offs in convenience and connectivity. It’s a niche play, but in the world of data, that niche is growing bigger every day.