Period Tracker - Hello Phase

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About this app

Period Tracker - Hello Phase is a private period tracker and menstrual cycle calendar with a coach that explains what your hormones are doing this week. No account, no cloud, no ads. Your cycle data stays on your phone.

KNOW YOUR PHASE, EVERY MORNING
Open the app and see your cycle day, your phase (menstrual, follicular, ovulation, luteal) and one plain-English insight for today. Progesterone rising and you feel slower? The app tells you before you wonder why.

PERIOD TRACKER AND CYCLE CALENDAR
Log your period with a tap. The calendar shows every past cycle and predicts the next ones, with your ovulation day and a five day fertile window. Predictions improve with every cycle you log.

LOG SYMPTOMS, MOOD AND FLOW
Cramps, headaches, cravings, energy, sleep, flow. Two taps per day. A journal for the things a chip cannot say.

A COACH WHO KNOWS WHAT DAY IT IS
Every week the coach reads your cycle day and recent symptoms and writes a short guide for the week ahead. What to expect, what to eat, how to move, and how to be kind to yourself. Plain words, no jargon, no fear.

ASK YOUR COACH
Cramps at 2am? Craving sugar before your period? A late period? Ask in your own words and get a straight answer for the day you are on. The coach is a wellness guide, not a doctor.

CYCLE SYNCING, KEPT SIMPLE
Each phase has its own guide. What is happening hormonally, what you might feel, the foods that help, and the kind of movement that fits. Cycle syncing without the spreadsheet.

YOUR PATTERNS, IN NUMBERS
Average cycle length, average period length, regularity, your next three periods, and the symptoms and moods that come back most often.

HORMONE LIBRARY
Estrogen, progesterone, FSH, LH, testosterone, PMS and PMDD, explained in plain language.

PREGNANCY MODE
When you are ready, switch to week by week guidance for pregnancy.

PRIVATE BY DESIGN
No account and no sign in. Your entries live only on your phone. The only thing that talks to a server is the coach, which sends your cycle day and recent symptoms to write its reply and keeps nothing afterwards. No ads, no trackers, no selling of data. Export everything as a file, or delete everything with one tap.

ONE PLAN, TWO WAYS TO START
Hello Phase is a yearly subscription. Start with a free week, or take a low priced first month, then one yearly plan. Prices are shown in the app for your region. Cancel anytime in your Google Play subscriptions.

NOT A MEDICAL DEVICE
Hello Phase is a wellness app. Predictions are estimates and the coach gives general information, not diagnosis or contraception. Please talk to a clinician for medical decisions.

SUPPORT
Email [e-mail], we reply within 48 hours.
Privacy policy: https://hellophase.pages.dev/privacy
Terms: https://hellophase.pages.dev/terms

Download Hello Phase and know your body, every phase.

What’s new

First release. Track your period, see your cycle calendar and predictions, log symptoms and mood, and get a weekly guide from a coach that knows what day you are on. Your data stays on your phone.