A workspace, not just a drive
Proton Drive excels at private storage and docs. Zeromatics adds review/approval workflow, e-signing and tasks on the same encryption.
Comparison
Like Proton Drive?
Keep the privacy — add the business workspace.
Proton Drive brings excellent end-to-end encrypted storage and docs out of a consumer-rooted suite. Zeromatics adds document workflow, e-signing, tasks and private AI on the same client-side encryption — and runs on your own infrastructure.
Proton Drive is a good product. This page is about one architectural difference — and who it matters for.
Side by side
Proton Drive and Zeromatics, side by side
| Proton Drive | Zeromatics | |
|---|---|---|
| Encryption model | End-to-end, zero-access encryption for files and Proton Docs. | Client-side, zero-knowledge encryption for all data — documents, tasks and AI alike. |
| Document editing | Proton Docs and Sheets edit collaboratively, end-to-end encrypted. | Word documents and spreadsheets edit in the browser, decrypted only on your device. |
| Document workflow | Secure storage, sharing and collaboration; no built-in review/approval routing. | Route documents for review and approval inside the encrypted workspace, with a signed audit trail. |
| E-signing & digital signatures | No native e-signature feature; a separate tool is needed. | E-signing and cryptographic digital signatures built into the workspace. |
| Task management | No built-in task management. | Encrypted task management built into every product. |
| Built-in private AI | No private AI inside Drive for working over your documents. | Private RAG AI on self-hosted small language models — your data stays in your boundary. |
| Self-hosting | Cloud SaaS, Swiss jurisdiction; hosted by Proton. | The entire platform can run privately on the customer's own infrastructure. |
| Pricing & focus | Low-cost, privacy-first suite with strong consumer roots. | Enterprise platform — five products on one encrypted core. |
The difference that matters
Same privacy roots. Built for the business.
Run it on your own infrastructure
Proton is hosted SaaS under Swiss law. Zeromatics can run entirely on your own servers — nothing leaves your boundary.
Private AI inside the vault
Private RAG over self-hosted small language models reads your encrypted documents on your own hardware — no external model sees them.
To be fair
When Proton Drive is the right choice
- You want an excellent, low-cost privacy suite with end-to-end encrypted storage and docs.
- Email, calendar, VPN and password manager in one Proton account matter to you.
- Your team mainly needs secure storage and collaborative documents, not workflow or e-signing.
- A managed Swiss cloud is preferable to hosting on your own infrastructure.
If your data could appear in a headline, the architecture is the decision. That is where we are different.
See the difference, sealed, live.
Watch your own data turn to ciphertext before it leaves the browser. The demo takes two minutes.