Compare -> ReefOffice vs Proton Workspace: which should you choose?
ReefOffice vs Proton Workspace: which should you choose?
Proton is excellent. It is the gold standard for end-to-end encrypted email and collaboration: Swiss-based, open-source, audited, and used by millions. If you are comparing ReefOffice and Proton Workspace, you already care about privacy and getting off Big Tech. So do we. The real question is what kind of product you need.
Proton encrypts your email and files on their servers.
ReefOffice gives you your own server running your whole business: files, CRM, invoicing, documents, automation, private AI and an AI agent.
Last reviewed: July 2026
Your own server, not their cloud
Proton encrypts your data on Proton servers. ReefOffice gives each client a dedicated server they own, with full export and an open-source stack you can take and self-host.
It runs your business, not just your inbox
Proton secures communication. ReefOffice runs the business: CRM, invoicing, OCR document filing, and automation. Those are not Proton Workspace features.
AI that never leaves the box
On a ReefOffice AI plan, the model runs locally on your own GPU. Your questions and documents stay on your server. On Office plans, you can bring your own provider key.
An AI agent that does the busywork
Hermes can draft an invoice, file a document, search your data, and run approved automations. Lumo answers questions; it does not act on your business apps.
One flat price for the whole team
Proton charges per user. ReefOffice Core Team is EUR89/mo flat for unlimited users (fair use) and includes the business apps Proton lacks.
Side by side
| What matters | ReefOffice | Proton Workspace |
|---|---|---|
| Where your data lives | ✓ A dedicated server you own | ~ Encrypted on Proton's cloud |
| CRM, invoicing and accounting | ✓ Included (Dolibarr) | ✗ Not offered |
| Document management + OCR | ✓ Included (Paperless-ngx) | ✗ Drive only, no OCR/filing |
| Workflow automation | ✓ Included (ReefCoral) | ✗ |
| Private AI chat | ✓ Runs locally on your GPU or your own key | ~ Lumo, zero-access, but on their cloud |
| AI agent that does the work | ✓ Hermes: autonomous agent with memory, every plan | ✗ Lumo is chat, not an agent |
| End-to-end zero-access encryption | ~ Vault zero-access; disk at rest; air-gap option | ✓ Yes, their core strength |
| Mail, Calendar, Drive, Docs, Meet, VPN, Pass | ~ Files/Docs/Calendar via Nextcloud; bring your own mail | ✓ All first-party |
| Pricing | ✓ Flat, unlimited users (fair use, Team EUR89/mo) | ✗ EUR12.99-19.99 per user / month |
| Lock-in | ✓ Open-source, full export, self-host anytime | ✗ Proprietary apps and formats |
| EU-based, outside US CLOUD Act | ✓ | ✓ |
When Proton is the better choice
We would rather you pick the right tool than the wrong one. Choose Proton if:
- →You only need secure email, calendar and a password manager, and do not want a server or business apps.
- →True end-to-end, zero-access encryption is your top requirement. Proton has the stronger cryptographic guarantee for its mail/drive/calendar model.
- →You want a single polished SaaS vendor with mature mobile apps, VPN, and a long public track record.
Why trust ReefOffice
Open-source stack
Nextcloud, Dolibarr, Paperless-ngx and ReefCoral are open-source. Nothing proprietary to trap you.
Take your data and leave
Full export, anytime. You can self-host the same stack, a guarantee multi-tenant SaaS structurally cannot make.
EU-based and GDPR by default
Your server lives in the EU, outside US CLOUD Act hosting. GDPR is the default, not an add-on.
Honest by design
We tell you when a competitor is the better choice. No dark patterns, no lock-in.
Frequently asked questions
Is ReefOffice more expensive than Proton Workspace? +
For a solo who only needs email and docs, Proton can be cheaper. ReefOffice Core Team is EUR89/mo flat for unlimited users (fair use) and includes CRM, invoicing, document management and automation that Proton does not offer.
Is ReefOffice as secure as Proton? +
Different model, different guarantee. Proton has true end-to-end zero-access encryption for mail/drive/calendar. ReefOffice gives you a dedicated encrypted server, a zero-access password vault, air-gap options, and business apps that need server-side access to work.
Does ReefOffice include an AI agent, or just chat? +
Both. ReefOffice includes private AI chat and Hermes, an autonomous AI agent with persistent memory that can act across approved workflows.
Can I keep using Proton Mail and still use ReefOffice? +
Yes. Many clients keep their existing email provider and run CRM, invoicing, documents, files, automation and private AI on ReefOffice.
What happens to my data if I want to leave ReefOffice? +
You export everything and can self-host the same open-source stack. There is no proprietary format to escape.
Do I need to be technical to run ReefOffice? +
No. ReefOffice is fully managed: no terminal, no server administration.
Where does ReefOffice run its AI? +
On AI plans, locally on your own GPU. On Office plans, you can connect your own AI provider key. Your documents are never used to train anyone else’s model.
Run your business on a server you own
CRM, invoicing, documents, files, automation and private AI, managed for you on a dedicated EU server, flat price for the whole team. Keep your existing email if you like.
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