Ambry vs Proton Drive
Proton Drive is a well-regarded, zero-knowledge encrypted storage service from the team behind Proton Mail. If you are comparing it with Ambry, the good news is that both are genuinely end-to-end encrypted — neither company can read your files.
The real difference is where your files live and how you pay for space. Proton Drive stores your files on Proton’s own servers and sells you storage. Ambry encrypts your files and stores the ciphertext in Google Drive accounts you already own — so you can grow your space for free by connecting more accounts.
| Feature | Ambry | Proton Drive |
|---|---|---|
| End-to-end encrypted | ✓ Yes | ✓ Yes |
| Zero-knowledge (provider can’t read files) | ✓ Yes | ✓ Yes |
| Where your files are stored | Google Drive accounts you own | Proton’s servers |
| How you get more space | Connect more Google accounts (free) | Buy a larger Proton plan |
| Cost | Free — uses storage you already have | Small free tier; paid plans for more |
| Automatic photo backup | ✓ Yes | ✓ Yes |
| Platforms | iOS, Android | Web, desktop, iOS, Android |
When Proton Drive is the better choice
- You want a full privacy suite — mail, calendar, VPN and docs — under one account.
- You would rather not involve Google at all, even as encrypted-only storage.
- You need a desktop sync client and web access today.
The bottom line
If you want an all-in-one privacy ecosystem, Proton is excellent. If you already have Google storage and just want it to be truly private — without paying for a second cloud — Ambry is the lighter, cheaper path.