Privacy & Security

We build trust through clarity and specificity. Plain-language principles and transparent security practices—no absolute claims unless we can prove them.

Our principles

  • Data minimisation – We collect only what's needed to provide the service.
  • Local-first by default – Your data stays on your device unless you choose otherwise.
  • User control – You decide what leaves your phone and who has access.
  • Transparency – We explain what we do with your data in plain language.

Read our privacy principles

Security overview

Encryption at rest on device; key management (high level); backups and device loss story. We avoid absolute claims like "end-to-end encrypted" unless we specify what is encrypted, which keys exist, and where decryption can occur.

Security details

What we do not do

  • We do not sell or share your personal health data without your explicit consent. You control whether your data is shared or sold.
  • We do not use your health data for targeted advertising.

Threat model (simplified)