. You may be eligible. See how it works
. You may be eligible. See how it worksOne app for your whole cycle life
Most apps show you charts and leave you guessing. Conceivable Periods gives you a plan. You tell it what is going on with your body. It tells you what to do today, in plain words.
Start your free weekFor iPhone. Your first week is free, then 14.99 dollars a month or 99 dollars a year. Cancel any time.
Six lenses, one app
Your body does not restart with every new chapter, so the app does not either. Pick the lens that matches your life right now, switch any time, and your history and plan carry over.
First Period
The very beginning, guided gently.
Periods
Cycles, symptoms, food, the foundation.
Fertility
Readiness, your window, the two week wait.
Pregnancy
Week by week.
Postpartum
Recovery, measured in fragments.
Menopause
Coming soon.
Meet Kai, honestly
Kai is an AI coach, and we say so plainly. What makes Kai different is what she was built from: founder Kirsten Karchmer spent 20 years in clinical practice working with more than 10,000 cases, and Kai encodes that pattern recognition. When Kai looks at your sleep, your cycle and your stress together, she is applying the same kind of connect the dots thinking a seasoned clinician uses, at app speed.
What Kai is not: a doctor. Kai does not diagnose, does not treat, and does not replace your provider. She helps you understand your patterns and act on them day to day. Kai handles all of it: the hard days, what you eat, the lab results and screenshots you bring her, and the very beginning if that's where you are.
The Conceivable Score
Answer a short assessment and get a readiness score built from your cycle, sleep, stress, food and symptom data, shown across five pillars: energy, blood, hormones, temperature and stress. It reflects your foundation, not your mood, so it will not swing overnight. Make small changes and watch it move month over month.
Upload anything
Already testing or tracking somewhere else? Screenshot a lab result, or your dashboard from Oura, Whoop, Mira or Inito, and Kai reads it in the context of everything else the app knows about you, then updates your plan. Prefer a direct connection? Connect Apple Health.
Works with the Halo Smart Ring
The optional Halo Smart Ring costs 250 dollars and reads temperature, plus sleep, recovery, stress, readiness and movement while you sleep. Tracking your ring data in the app is free forever, with no ring subscription. Ring data in Conceivable is trend level wellness insight, not a medical device reading.
Supplements, only when your signals point there
When your data points somewhere specific, Kai can suggest a personalized supplement pack built for exactly that. Nothing else, and entirely optional. There is also the Conceivable Promise, a membership with a money back guarantee, for people who want the whole system.
Your data
Encrypted. Never sold. Deletable by you. Our privacy policy names the service providers who help us run the app. Female founded, and privacy first is a stated commitment, not a setting you have to find.
Questions people ask
What does it cost?
Your first week is free, then 14.99 dollars a month or 99 dollars a year. Cancel any time.
Do I need the ring?
No. The app works on its own, with Apple Health, or with screenshots of data you already have. The ring just makes the data effortless.
Is this medical care?
No. Conceivable Periods is a general wellness app. It does not diagnose, treat, cure, mitigate or prevent any disease or condition, and it is not a substitute for professional medical advice.
What phones does it run on?
iPhone, requiring iOS 16.6 or later. Find it on the App Store.