Sansa: Menstrual Calendar

Understand your body, not just the dates.

Sansa is a period tracker and cycle calendar. Log your last period and in under a minute you'll see your next period forecast, your ovulation window and the phase you're in today. Over time, Sansa learns to tell you how you're likely to feel tomorrow. Free, with no ads.

FORECASTS FROM DAY ONE
– Period and ovulation window forecasts months ahead
– A cycle ring on your home screen shows your cycle day and phase at a glance
– A daily summary tells you how many days are left until your period and ovulation
– Forecast accuracy: the most likely day, a date range and a confidence level with a clear explanation
– A positive ovulation test makes your forecast more precise

WELLBEING FORECAST
– Sansa notices which symptoms repeat on the same cycle days and gives you a heads-up
– A forecast for tomorrow and the week ahead, with an explanation of why
– A reminder the evening before when a symptom usually shows up, so you can plan a calmer day

ENERGY MAP
– See which cycle days you have the most energy and when you need rest
– Your energy peak and dip, plus a look at the next 2 weeks
– Built from your own patterns, not generic advice about phases

DAILY LOG IN A FEW TAPS
– Period flow, mood, energy, sleep and symptoms on one screen
– Optional: ovulation tests and birth control pills
– Answer right from the notification: log mood, energy and flow without opening the app

ONE-TAP PERIOD LOGGING
– Tap the first day and Sansa fills in the rest based on your usual period length
– Cycles are calculated for you, and Sansa asks when something is unclear
– Add past cycles so your forecast is accurate from the start

WIDGETS
– Home screen widgets: cycle day, current phase and countdown to your period and ovulation, without opening the app

SYMPTOMS & PMS
– 19 symptoms including cramps, headache, bloating, anxiety and mood swings
– Add your own symptoms and build a list that fits you
– The symptom map shows which cycle days your symptoms keep coming back

CALENDAR & INSIGHTS
– A phase calendar: menstruation, follicular phase, ovulation and luteal phase
– Average cycle and period length, regularity and your cycle length trend
– Compared with the typical 21–35 day range, so you notice when your cycle gets shorter or longer

PRIVATE DIARY
– Notes for any day: sleep, mood, what happened
– Notes for each cycle and search across your entries

REMINDERS WITHOUT THE NOISE
– 2 days before your period and on the day it's due
– Start of your ovulation window and your likely ovulation day
– A cycle recap showing how your last cycle compared with usual
– Pill reminder: tap "Taken" right in the notification
– Log the start or end of your period right from the notification
– Quiet hours and hidden text, so no one reads about your cycle on your lock screen

YOUR DATA STAYS YOURS
– No ads
– Lock Sansa with Face ID, Touch ID or your passcode, so no one who picks up your phone can see your entries
– Your entries are visible only to you and sync across your devices

Sansa is available in English and Russian and supports Dark Mode.

Download Sansa and find out when your next period starts and how you're likely to feel, today.