Pricing comparison
Fastmail vs Proton Business
Side-by-side pricing breakdown for Workspace & Email Suites decision-makers
Each amount uses its recorded currency; no currency conversion is applied. Confirm billing units, commitments, and current regional terms.
Compare the plan that fits your requirements
Check billing units, included usage and renewal terms. Starting prices alone do not establish an overall winner.
Dataset dated 2026-04-21. Sources: Fastmail pricing and Proton Business pricing.
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Recorded starting rates: Fastmail Price unavailable; Proton Business $7.99/mo. Billing units and commitments can differ. Compare the plans that include your required features, then request quotes for the same quantity and term.
Feature Comparison
| Feature | | |
|---|---|---|
| email focused | No productivity apps like Word/Excel - email + calendar + contacts only | Not recorded |
| jmap protocol | Open JMAP standard protocol - provider portability | Not recorded |
| imap caldav carddav | Open standards for third-party client access | Not recorded |
| custom domains | All business plans | Not recorded |
| encryption at rest | All plans | Not recorded |
| 24 7 support | All plans | Not recorded |
| scheduled send | Standard+ | Not recorded |
| snooze | Standard+ | Not recorded |
| email retention archive | Confirm the required retention, export and administrative controls. | Not recorded |
| masked email | Built-in alias generation for privacy | Not recorded |
| no advertising | Confirm current privacy and advertising terms. | Not recorded |
| australia headquartered | FastMail Pty Ltd based in Melbourne | Not recorded |
| 2 year discount | Compare the full two-year commitment with the current monthly quote. | Not recorded |
| end to end encrypted email | Not recorded | Confirm encryption scope, recipient compatibility and metadata access. |
| swiss jurisdiction | Not recorded | Switzerland-based - subject to Swiss privacy law |
| custom domain email | Not recorded | All plans |
| proton vpn | Not recorded | Business+ included |
| proton drive encrypted storage | Not recorded | Business+ included |
| proton pass password manager | Not recorded | Business+ included |
| proton calendar encrypted | Not recorded | All plans |
| open source audited | Not recorded | Check the repository, app version and applicable audit report. |
| zero knowledge architecture | Not recorded | Confirm encryption scope, recipient compatibility and metadata access. |
| gdpr compliant | Not recorded | Not assessed by StackScored; verify scope, vendor terms, and your obligations. |
| hipaa baa | Not recorded | Not assessed by StackScored; verify scope, vendor terms, and your obligations. |
| 30 day money back | Not recorded | All plans |
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Dive Deeper
Proton Business
About the workspace & email suites category
Workspace subscriptions can bundle business email, files, office apps, meetings and administration. Email-only products cover a different scope. Compare the applications and licensed users you actually need.
How to choose between workspace & email suites options
Check document compatibility, mailbox and file storage, custom domains, meeting requirements and administration. Confirm the exact regional edition and distinguish web apps, desktop licenses and separately priced AI features.
Building Your Business Stack?
Decision-makers comparing tools often need more than one category. Here are related comparisons:
Frequently Asked Questions
- How do Fastmail and Proton Business prices compare?
- Fastmail: Price unavailable. Proton Business: $7.99/mo. These are recorded starting prices; compare billing units, included usage and contract terms before treating them as equivalent costs.
- Which is better for my requirements, Fastmail or Proton Business?
- Compare the recorded features and plan limits against your requirements, then confirm them with each vendor. This page does not establish hands-on testing or an overall winner.
- What happens after the first billing term?
- Use any recorded renewal rate as a dated observation. When a future rate is missing, ask the vendor; do not assume the starting price remains unchanged.