Fortuity Cycle
A cycle tracker built to share: one tap to log, a link to keep someone in the loop.
About
Fortuity Cycle logs a period in one tap, with five symptoms if you want them, and predicts your next one as a range built from your own logged cycles rather than a single confident date.
The Support Loop is the rest of the product: invite one person by link, choose exactly what they see, phase only or phase and symptoms, and change or end any one person's access whenever you like. They open the link with nothing to install and nothing to sign up for.
It connects to Apple Health in both directions: your existing cycle history reads in on the first day, and every new entry writes back, so the record stays in your own health store. Fortuity Cycle is on iPhone, by invitation.
Log
One tap starts a period, one tap ends it. Five symptoms are there if you want them, and nothing else asks for your attention.
Predict
After three logged cycles, the prediction comes from your own pattern rather than an average, and it always arrives as a range with a plus-or-minus, never a single date dressed up as certain.
Share, precisely
Invite one person by link. Choose what that person sees, phase only or phase and symptoms, and change or end their access instantly. They open it with nothing to install and nothing to sign up for.
The Support Loop
A partner, a mother, a sister, a close friend: each person you invite gets their own view and their own link, so the people who want to help actually know what is happening.
Built on Apple Health
It reads your existing cycle history so the app is useful from the first day, and writes new entries back, so your record stays in your own health store even if you stop using the app.
Kept narrow on purpose
No onboarding wizard, no mood scale, no shop, no horoscope. Fertility and ovulation output stays off by default; this is not a medical device and does not give medical advice.