Calendar Girl is a simple, private period tracker. Log your period with one tap and the app works out when the next one is due and when you ovulate.
WHAT YOU GET
• Period and ovulation predictions
The app learns from your history — the more cycles you log, the more accurate it gets. Average cycle and period length are calculated for you.
• A calendar you can read at a glance
Period days, fertile window and ovulation, each in its own colour.
• Today screen
Cycle day, current phase, days until your period and ovulation, and your chance of pregnancy — all in one place.
• Daily log
Mood, 16 symptoms (cramps, headache, bloating, acne and more), flow, intimacy, water, weight and a note.
• Statistics and charts
Cycle length month by month, averages, frequent symptoms, mood distribution and your full cycle history.
• Reminders
Before your period (1–5 days ahead) and on your ovulation day, at a time you choose.
• Home screen widget
Your cycle day and days until your period, without opening the app.
• PIN and Face ID lock
Your diary stays yours.
• Sync with Apple Health
The app reads the period days you already track in Health and writes new ones back.
• A report for your doctor
One PDF page with your averages, your last 12 cycles and your most frequent symptoms.
• Optional iCloud backup
Turn it on and a copy of your history is kept in your own iCloud, so a new phone starts where the old one stopped.
• Apple Watch app
Log your period from your wrist, and see your cycle day at a glance.
• Pregnancy mode
Week, trimester, due date and the baby's size — the app keeps up when your cycle stops.
• Fertility signs
Basal temperature charted against your cycle day, ovulation tests and cervical mucus.
• Bring your history with you
Import from another tracker, and export your own data whenever you like.
PRIVACY
All cycle data is stored on your device only, and no sign-up is required. If you turn on the backup, the copy goes to your own iCloud — never to us.
CALENDAR GIRL PRO
The subscription removes ads and unlocks detailed statistics: cycle length charts, symptom and mood insights.
• Weekly or yearly (yearly includes a 3-day free trial)
• Payment is charged to your App Store account at confirmation of purchase
• Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the period
• Manage subscriptions and turn off auto-renew in your App Store settings
Terms of Use (EULA): https://calendargirl-ee998.web.app/terms
Privacy Policy: https://calendargirl-ee998.web.app/privacy
Please note: this app is not a medical device and does not replace professional medical advice. Predictions are for information only.
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