100% free. No premium tier. Ever.
The period & pregnancy tracker that never asks you to pay.
Masik gives you every feature — calendar, symptom logging, predictions, pregnancy & perimenopause modes, reminders, monthly reports, and community — free for every user, forever.
↳ No paywalls, no locked features, no subscriptions — anywhere in the app.
September 2026
Predicted next period
Sep 28
Fertile window
Sep 12 – Sep 16
What can you do with Masik?
September 2026
Predicted next period
Sep 28
Fertile window
Sep 12 – Sep 16
Smart calendar
Month view of your cycle days, period days, predicted ovulation and fertile window, plus a pregnancy day counter. Take the tour.
Effortless logging
Log period flow, symptoms, mood, sexual activity, basal body temperature, weight and height, and free-text notes. Start logging.
Rule-based predictions
Your next period and ovulation window are calculated from a rolling average of your own cycles — no upsells, no locked results. How predictions work.
Pregnancy & perimenopause modes
A due-date calculator and week-by-week content, or reframed cycle messaging and symptom logging — whichever stage you're in. Switch modes anytime.
Why choose Masik?
Nothing locked behind Upgrade
Predictions, exports, monthly reports, community — every feature described here is available from the day you sign up.
See what's included →Your data is exportable, always
A doctor's report or the complete raw record, on demand — no upsell standing between you and your own history.
Learn about export →Anonymous where it matters
Post to the community under a generated identity, and turn on Anonymous Mode to hide your name and email in the app itself.
See privacy options →Why free, really free?
Health tracking is basic infrastructure, not a luxury. Masik has no subscription, no in-app purchases, and no entitlement system anywhere in its code — every feature described above is available to every account from day one.
Start tracking free