What this is
Health Log Sync is a mobile-first web app that makes it easy to capture a timestamped trail of
activities (optionally timed) and symptoms. The goal is to make patterns visible—especially “what happened before the symptom.”
Privacy
- No database: your entries and templates are stored in your browser (localStorage).
- Export anytime: download a JSON backup and move it to another device.
- AI is optional: if you connect an OpenAI key, it’s stored only in this browser session.
AI data handling
- AI report calls
/v1/responses with store:false to avoid Responses storage by default. (OpenAI still may retain abuse-monitoring logs unless your org has retention controls.)
- Voice notes use your device/browser dictation (your OS/browser may process speech under its own policies; this app does not upload your audio to our servers).
Medical disclaimer: This tool is for logging and reflection only. It does not diagnose, treat, cure, or prevent disease.