Health Tracker: Symptom Diary

Health Tracker is a private health diary for anyone who needs to tell a doctor what actually happened, and when. Log symptoms, food, medication and more, then take a clear report to your appointment.

Your entries are stored in the private application folder of your own Google Drive - an area only this app can open - with a copy on the device so it works offline. You sign in with your own Google account so the app can reach that folder. There is no account with us, no server of ours in between, and nothing about you reaches us at any point.

Built for people managing an ongoing condition, working through an elimination diet, preparing for a specialist appointment, or simply trying to answer "how long has this been going on?" with something better than a guess.

📋 What You Can Log

- Symptoms, with severity
- Food and drink
- Medication, including scheduled doses and ones you missed
- Bowel movements, using the Bristol stool scale
- Sleep, mood and exercise
- Weight, blood pressure and blood glucose
- Any other event worth recording

Everything lands on one timeline, in the order it happened, so patterns are visible where they actually occur - across the day, not buried in a monthly average.

🔒 Your Data, Your Drive

- Stored in your own Google Drive, in a folder only this app can read
- Syncs to your other devices through your own Google account
- Excluded from Android cloud backup and device transfer
- No usage analytics, no advertising, no tracking of any kind
- Export everything to a single file whenever you like

📄 Reports For Your Appointment

Generate a factual summary of any window and export it as a PDF. It carries the figures, the statistics behind them, and every entry it was written from, so a clinician can check one against the other. Ten minutes with a doctor goes further when the history is already on paper.

🤖 Optional AI Analysis

If you supply your own Google Gemini API key, the app can write two kinds of report from your log. The summary describes what was recorded, without interpreting it. The pattern analysis suggests what the data could point to, stating clearly that every explanation is unverified.

The key is yours, requests go from your phone straight to Google, and nothing is ever sent unless you press the button. Leave the key blank and these features simply stay off.

⌚ Health Connect

Optionally import weight, blood pressure, blood glucose, sleep and exercise that other apps have already recorded. Off until you turn it on, one data type at a time, and read-only - Health Tracker never writes back to Health Connect.

🚀 Getting Started

1. Open the app and connect your Google Drive - this is where your log will live
2. Start logging whatever matters to you, from the first day
3. Set up medication schedules if you take anything regularly
4. Add your Gemini API key in Settings only if you want the AI reports

ⓘ Important

Health Tracker is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. It is a diary: it records what you tell it and describes patterns in what you recorded. It cannot examine you, and nothing it produces is medical advice. The pattern analysis is speculative by design and carries a fixed notice saying so. Always consult a qualified healthcare professional for medical advice, diagnosis, or treatment, and never use this app to delay seeking care.

Requires Android 10 or newer and a Google account. No subscription.

Privacy policy: https://celest-watches.com/health-tracker/privacy-policy.html
Support: https://celest-watches.com/contact-us/