Proton Drive vs Google Drive: Private Cloud Storage

This post may contain affiliate links, meaning if you decide to make a purchase via my links, I may earn a commission at no additional cost to you. See my disclosure for more info.

TL;DR: Proton Drive wins if privacy is the point — your files are end-to-end encrypted, so not even Proton can read them. Google Drive wins on collaboration, integrations, and sheer convenience, and its 15 GB free tier is more generous than Proton’s 5 GB. My take: keep Google for shared work documents if you must, but move anything personal or sensitive to Proton.

Cloud storage is one of those things you set up once and forget — which is exactly why it’s worth choosing deliberately. Your tax records, contracts, ID scans, family photos, and business files will sit on someone’s servers for the next decade. The question is who can look at them.

The two services in a nutshell

Google Drive is the default for a reason. It’s fast, it’s everywhere, it plugs into Docs, Sheets, Gmail, and about every app on earth, and every account starts with 15 GB free (shared across Gmail and Google Photos, which fills quicker than you’d think). The trade-off: Google encrypts your files in transit and at rest, but it holds the keys. Technically and legally, your data is accessible to the company.

Proton Drive comes from the Swiss team behind Proton Mail. Everything you upload is end-to-end encrypted — contents, file names, folder names — so only you can decrypt it. The company operates under Swiss privacy law, publishes open-source apps, and makes money from subscriptions instead of data. Free accounts get up to 5 GB; paid plans scale from 200 GB to multi-terabyte family setups.

Proton Drive vs Google Drive at a glance

Privacy and encryption: the actual difference

This comparison lives or dies on one technical distinction. Google’s encryption protects your files from outside attackers — but not from Google itself, which can scan, index, and hand over content in response to legal requests. That’s not a scandal; it’s the architecture, and it’s in the terms you accepted.

Proton Drive is built the other way around. Files are encrypted on your device before upload, and Proton never has the keys. Nobody at the company can open your folder of contracts, and neither can anyone who compromises their servers. Swiss jurisdiction adds a legal layer on top of the technical one.

The honest flip side: end-to-end encryption has a cost. If you lose your password and your recovery method, your files are gone — no support desk can restore what they cannot decrypt. Set up a recovery phrase the day you sign up and store it somewhere safe. This is the deal you make for real privacy, and you should make it with open eyes.

Storage and pricing

Google gives you 15 GB free, but it’s shared with Gmail and Google Photos, so “storage full” warnings tend to arrive within a couple of years. Paid upgrades run through Google One, with tiers from 100 GB up to several terabytes — check current pricing, as it varies by country.

Proton’s free tier offers up to 5 GB for Drive. Paid options go from Drive Plus at 200 GB to Proton Unlimited at 500 GB — which bundles Proton Mail, VPN, and the Pass password manager — and on to Duo (2 TB, two people) and Family (3 TB, up to six people). I couldn’t verify current prices at the time of writing, so check current pricing on their site. If you’d otherwise pay separately for a VPN and a password manager, the Unlimited bundle is usually where the math starts working in Proton’s favor.

On pure dollars per gigabyte, Google typically comes out cheaper. You’re not paying Proton for gigabytes; you’re paying for the encryption model.

Collaboration and everyday use

Here Google is still clearly ahead. Real-time editing in Docs and Sheets, comments, version history, third-party app integrations — if your work depends on live collaboration with clients or a team, Google Drive remains the path of least resistance.

Proton has closed part of that gap: it now offers encrypted Docs and Sheets, plus file versioning and photo backup on mobile. For solo work and file storage it’s entirely usable day to day. For a ten-person team collaborating in shared spreadsheets all day, it isn’t there yet, and pretending otherwise would be doing you a disservice.

Sharing works fine in both: Proton lets you send password-protected, expiring links to people who don’t have Proton accounts, which is genuinely useful for sending contracts or deliverables.

Speed, apps, and the switching question

Google’s apps are more polished and its sync is battle-tested at a scale nobody matches. Proton’s apps cover Windows, Mac, iPhone, and Android and have improved a lot, but encryption adds overhead — very large uploads can feel slower, and the offline experience is more basic.

Switching also takes an afternoon, not a click. You download from one service and upload to the other, and shared links need recreating. I’ve been through a cloud migration myself and wrote about the mess in why I moved my backups and photos between cloud services — the lesson is to plan it once, properly, instead of living in three half-migrated accounts.

The move most people actually make isn’t a full switch. It’s a split: work and throwaway files stay in Google, and everything sensitive — IDs, finances, health documents, backups of your business — moves behind Proton’s encryption. As a blogger, that split covers my whole blogging setup without forcing collaborators to change anything.

Verdict: which one should you use?

Choose Proton Drive if you want your personal documents, photos, and business records readable by exactly one party: you. It’s also the obvious pick if you’re already de-Googling with Proton Mail or their VPN, since one subscription covers the lot.

Stay with Google Drive if real-time collaboration, Workspace integration, or shared team drives are your daily reality, and the privacy trade-off doesn’t bother you enough to accept clunkier collaboration.

Do both if you’re like most people I advise: Google for collaborative work, Proton for everything you’d rather keep private. The free tiers of both make this split cost nothing to try.

FAQ

Is Proton Drive more private than Google Drive?

Yes, by design. Proton Drive uses end-to-end encryption, meaning files are encrypted on your device and Proton cannot read them. Google encrypts data in transit and at rest but retains the ability to access content, scan it, and comply with data requests.

Is Proton Drive free?

There’s a free plan with up to 5 GB of storage, which is enough to test the apps and store essential documents. Paid plans add space (200 GB and up) and features like extended file recovery. Pricing changes, so check the current numbers on Proton’s site.

Can I open Google Docs files in Proton Drive?

You’ll need to export them first — Google Docs’ native format doesn’t transfer directly. Export to Word or PDF, then upload to Proton Drive. Proton’s own Docs and Sheets can handle standard document editing, but complex spreadsheets with scripts won’t survive the trip intact.

What happens if I forget my Proton password?

Without a recovery method, encrypted files are unrecoverable — that’s the honest cost of end-to-end encryption. Proton offers recovery phrases and recovery email options, so set one up immediately after creating your account.

Is Google Drive safe for sensitive documents?

It’s safe against outside hackers when you use a strong password and two-factor authentication. It’s not private from Google itself, and account access requests do happen. For IDs, financial records, and anything confidential, end-to-end encrypted storage is the more defensible choice.

Your files are going to live in the cloud for years either way — the only real question is who holds the keys. Create a free Proton Drive account and move your sensitive folders behind encryption this week; keep Google for the collaborative leftovers, and you get the best of both without the privacy hangover.