Period Tracker: Cycle Calendar

Period Tracker is a calm, beautiful period calendar that helps you understand your cycle.

See at a glance how many days until your next period, which phase you are in, and when your fertile window and ovulation are expected. Log how you feel in seconds and watch your own patterns appear over time.

🌸 KNOW YOUR CYCLE AT A GLANCE
• Colourful cycle ring with your period, fertile days and ovulation
• Countdown to your next period and today's cycle day
• Your current phase: period, follicular, fertile window, ovulation or luteal
• Daily chance of pregnancy (low, medium, high)

📅 SMART PERIOD CALENDAR
• Monthly calendar with logged periods, predicted periods, fertile window and ovulation
• Tap any day to see its phase, your notes and what you logged
• Mark when your period starts or ends in one tap
• Predictions learn from your history and get more accurate every cycle

📝 LOG IN SECONDS
• Flow: spotting, light, medium or heavy
• Moods: happy, calm, sensitive, anxious, tired and more
• Symptoms: cramps, headache, bloating, cravings, acne, back pain, insomnia and more
• Personal notes for anything you want to remember

📊 INSIGHTS
• Average cycle length and period length
• Cycle length trend for your recent cycles
• Your most logged symptoms and moods
• Full cycle history

✨ UNDERSTAND EVERY PHASE
• Simple explanations of each phase of the menstrual cycle
• Tips for each phase: rest, food, movement and sleep
• Short, friendly reads about the fertile window, nutrition, sleep and when to see a doctor

🔔 GENTLE REMINDERS
• Upcoming period (2 days before and on the day)
• Start of your fertile window
• Daily check-in reminder, at the time you choose

💗 MADE TO FEEL GOOD
• Clean, soft design with smooth animations
• Quick setup in five simple steps
• Optional dark mode
• Works on phones and tablets

Who is it for?
Anyone who wants a simple menstrual cycle tracker: to know when the next period is coming, follow ovulation and fertile days, or spot patterns in PMS, mood and symptoms.

Important
Period Tracker is for information and personal tracking only. Predictions are estimates based on the calendar method and your own history. It is not a method of contraception and does not give medical advice or diagnosis. Talk to a healthcare professional about any health concerns.

Questions or ideas? We would love to hear from you: 4dstechsupport@gmail.com

Recent changes:
Improved Performance