Period Tracker - Cycle Log

Halim Box Dev

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About this app

A period tracker that keeps your cycle data where it belongs — on your phone.

No account. No sign-in. No cloud sync, not even as an option. Nothing you log is uploaded anywhere, because there is no server to upload it to. Uninstall the app and the data is gone for good.

PREDICTIONS THAT LEARN FROM YOU
Most cycle apps ask for one number in setup and keep using it forever. This one starts with your setup values, then quietly replaces them with what your body actually does.
• Recent cycles count the most, so predictions follow your body as it changes
• Unusual gaps are filtered out automatically instead of skewing the average
• Ovulation is estimated backwards from your next period, which is more accurate if your cycle is not 28 days

HONEST ABOUT UNCERTAINTY
Every prediction comes with a confidence level. One logged cycle shows low confidence, not a confident-looking date that has nothing behind it. If your cycles vary a lot, the app says so plainly rather than hiding it.

WHAT YOU CAN TRACK
• Period start and length
• Flow: light, medium, heavy
• Mood
• Symptoms: cramps, headache, bloating, tender breasts, acne, fatigue, backache, nausea, cravings, trouble sleeping
• A short private note for any day

SEE YOUR WHOLE CYCLE
• A ring showing exactly which day of your cycle you are on
• A colour-coded monthly calendar: period, fertile window and ovulation
• Next period, fertile window and ovulation dates at a glance
• Cycle history with average, shortest and longest length
• Your most frequently logged symptoms

QUIET REMINDERS
An optional reminder two days before your predicted period. The notification text is deliberately neutral, so a glance at your lock screen does not tell anyone else what it is about.

DELETE EVERYTHING, ANY TIME
One tap in Settings erases every period, symptom and note permanently. No confirmation emails, no retention period, no copy left behind.

IMPORTANT
This app provides educational information only and is not medical advice. Do not use it as birth control — fertile window estimates are based on calendar statistics, and calendar-based methods have a high failure rate for preventing pregnancy. For anything that concerns you about your cycle, please speak to a healthcare professional.