Email you can
actually trust
Private, encrypted email protected by Swiss law. No ads, no profiling, no compromises. Flonum keeps your inbox yours.
Free @simple.flonum.ch addresses · Premium @flonum.ch available
Everything you expect. Nothing you don't.
Flonum gives you a full-featured email experience with privacy baked in from day one — not bolted on afterward.
End-to-end encryption
Messages are encrypted on your device before leaving. Only you — and your recipient — can read them. Not even Flonum can access your content.
Custom domains
Bring your own domain or use ours. Set up email for your business, project, or family with full DNS control.
PremiumAliases & catch-all
Generate unlimited email aliases to protect your real address. Use a different alias per service. Disable any alias instantly.
Spam & phishing protection
Advanced filters trained on global threat intelligence keep your inbox clean without scanning your message content.
Web & mobile access
A clean, fast webmail client accessible from any browser. Native iOS and Android apps coming soon.
Mobile app: soonIMAP / SMTP support
Use Flonum with any email client you already love — Thunderbird, Apple Mail, Outlook. Standard protocols, fully supported.
Secure notes & storage
Attach encrypted files up to 25 GB. Store sensitive documents alongside your email, safely.
PremiumTwo-factor authentication
Protect your account with TOTP authenticator apps, hardware security keys (FIDO2/WebAuthn), or backup codes.
Calendar & contacts
An integrated, encrypted calendar and address book — synced across your devices via CalDAV and CardDAV.
Coming soonSimple, honest pricing
No hidden fees, no upsells, no data harvesting. Pay for what you use.
Free
@simple.flonum.ch
For individuals getting started with private email.
- 1 GB mailbox storage
- 1 email address
- Up to 5 aliases
- Web access
- E2E encryption
- 2FA support
Premium
@flonum.ch
For professionals who want the full Flonum experience.
- 25 GB mailbox storage
- Up to 3 email addresses
- Unlimited aliases
- Custom domain support
- IMAP / SMTP access
- Priority support
- Encrypted file storage
- Early access to new features
Billed annually (monthly billing available at +20%). All prices include Swiss VAT.
Switzerland is not a coincidence
- Protected by the Swiss Federal Act on Data Protection (nFADP), one of the world's strongest privacy frameworks.
- All servers are physically located in Switzerland. Your data never crosses into EU or US jurisdictions without your explicit consent.
- Switzerland is not a member of the Five Eyes, Nine Eyes, or Fourteen Eyes intelligence alliances.
- Zero-access architecture: our technical design means we cannot read your emails even if compelled to.
Made in Switzerland
Flonum is founded, operated, and hosted entirely in Switzerland — not a foreign company hiding behind a Swiss VPN node.
Registered under Swiss company law
nFADP compliant · GDPR compatible
Roadmap
We're just getting started. Here's what we're building — in order of priority.
Webmail & core email
Encrypted webmail, aliases, spam filtering, 2FA.
IMAP / SMTP access
Use Flonum with your preferred desktop email client.
iOS & Android apps
Native mobile clients with push notifications and biometric unlock.
Encrypted calendar & contacts
CalDAV/CardDAV sync across all your devices, zero-knowledge.
Flonum Drive
Encrypted cloud storage — think of it as a private, Swiss alternative to Google Drive.
Secure messaging
End-to-end encrypted chat and calls, integrated with your Flonum account.
Team & business plans
Shared inboxes, admin controls, audit logs, and SSO for organisations.
Your privacy starts with one address.
Join thousands of people who've taken back control of their inbox.