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First release. • Log the start and end of your period in one tap • Record mood, flow, pain and symptoms • See period, fertile window and ovulation estimates on one calendar • Get a reminder before your period is estimated to start • Review your history and averages worked out from your own cycles Your health data is encrypted and stays on your device. Estimates only — not medical advice, and not a method of contraception.
Private cycle calendar. Period estimates from your own logs, kept on device.
Period Tracker follows your cycle using estimates built from the dates you log yourself — on your phone, and nowhere else. WHAT YOU CAN DO • Log the start and end of your period in one tap • Record mood, flow, pain and symptoms — as much or as little as you like • See period, fertile window and ovulation estimates on a single month view • Get a reminder before your period is estimated to start, as many days ahead as you choose • Look back over every day you logged, kept together in one history • See averages — cycle length, period length, how steady your cycles are — worked out only from what you logged PRIVATE BY DESIGN Your health data (period dates, symptoms, mood, notes) is stored in an encrypted database on this device. It is never sent to analytics, advertising or subscription systems. Reminders are worked out on your phone from your own logs — nothing about your cycle leaves it to produce them. You can erase everything from the Privacy Center whenever you want. ESTIMATES, NOT CERTAINTIES Every forward-looking date here is an estimate based on the cycles you have logged, and cycles vary from month to month. This app is not a medical device and does not give medical advice. It must not be used as a method of contraception or to avoid pregnancy. If something about your cycle concerns you, speak to a healthcare professional. FREE AND PREMIUM Free: all logging, the calendar, reminders, and three months of history. Premium: unlimited history, no ads, deeper insights, and an encrypted export so you can move your data to a new phone. Premium is an auto-renewing subscription. Payment is charged to your account at confirmation of purchase, and renews unless auto-renew is switched off at least 24 hours before the end of the current period. Manage or cancel it in your account settings. LANGUAGES English, Turkish, German, Spanish, French, Italian, Portuguese, Arabic. Privacy Policy: https://sites.google.com/view/privacypolicyperiodtracker Terms of Use: https://sites.google.com/view/preiyottrackertermsofuse/
past month, based on 1 day
Downloads
Low confidence13
From install count ÷ months since release
In-app revenue
Low confidence$9
From downloads × revenue per download
Ads
$3
$1 – $6
Estimate, ads (benchmark-based, not calibrated per app)
Total
$12
In-app + ads
Google Play only. Downloads from daily Top free ranks (or the store's install count); in-app revenue from Top grossing ranks, calibrated on AppTweak's US estimates, or else from downloads; ads from public ad benchmarks. Not reported figures.