Email
Tuta (Tutanota)
Tuta · DE · since 2011-03
German encrypted email that encrypts subject lines and metadata too, not just bodies. Uses a custom hybrid scheme over PGP. Free 1GB. Quantum-resistant since 2024.
Open sourceAuditedE2EEGPL-3.0Freemium
Pros
- + More aggressive default encryption than Proton
- + Open source apps
- + Cheap entry tier
Cons
- − Custom protocol — interop with PGP requires manual export
- − Smaller ecosystem than Proton
- − Search through encrypted mail is limited
Highlights
- ▸Encrypts subject + metadata (rare)
- ▸Quantum-resistant since 2024
- ▸EU jurisdiction (GDPR)
Specs at a glance
- License
- GPL-3.0
- Open source
- Yes
- E2EE
- Yes
- Audited
- Yes
- Self-host
- No
- HQ
- DE
- Pricing
- freemium
- Platforms
- 6 platforms