Hathia: Period & Cycle Tracker

Hathia is a cycle tracker that keeps everything on your phone. No account, no cloud, no ads, no tracking.

SEE WHERE YOU ARE
A cycle dial shows today's day and phase, and counts down to your next period. Log period days and flow in a couple of taps; with Pro, log how you feel each day too.

A COUNTDOWN ON YOUR HOME SCREEN
Add the widget and see the days until your next period at a glance, with the date and where you are in your cycle. Turn on Discreet notifications and it shows only a number.

PREDICTIONS THAT LEARN FROM YOU
Hathia starts from your own estimate and learns from your logged cycles as they build up. Predictions are estimates, not medical advice.

HISTORY, STATS AND BADGES
A calendar of your cycles, a 30-day flow chart, streaks and badges to keep you going.

HEALTH LOGGING
Log temperature, weight, sleep, water, cervical fluid and tests, and see how they change.

GENTLE REMINDERS
A nudge before your period, a daily log reminder, a pill reminder. Choose the times that suit you. Discreet notifications say nothing about your cycle on the lock screen.

PRIVATE BY DESIGN
Your data is stored only on your phone, in the app's private storage, and Android's cloud backup is switched off for it. The app has no internet permission. Lock it with a PIN, hide it in recent apps, export or delete everything whenever you like.

HATHIA PRO ($3.00 once, no subscription)
- "How are you feeling?": log symptoms and moods every day
- Advance period reminders and more than 3 reminders
- Cycle-length trends and a full year of history
- Symptom patterns and insights
- Health trends and charts
- Ovulation insight from your temperature
- A summary to share with your doctor

Free keeps the essentials: period logging, the cycle dial and countdown, the calendar, streaks, badges, the 30-day chart, health logging, CSV export and import, dark mode, app lock and up to 3 reminders.

Hathia is not a medical device and does not provide contraception or fertility guarantees.