BBT Chart
Log waking temperatures in Celsius or Fahrenheit and review a chart with observation notes.
Open your tracker
Your own optional health or cycle observations. You decide whether to save them on this device.
How it works
- Open the tracker and read the device-storage choice.
- Add the observations you want to track.
- Review the calendar or chart and export or delete your records using the tracker controls.
Your records
Device-only logs and visual summaries. Predictions are estimates and must not be used as contraception or a diagnosis.
Your information
Tracking uses this browser’s local storage only after you opt in. Data is not automatically transferred to another device or an account. Read the privacy details.
What to keep in mind
- Anyone with access to this browser profile may be able to read saved records.
- Clearing browser storage or changing devices can remove access to your records. Keep any exports private.