Pregnancy, with your context
You ask ChatGPT, it doesn’t know you. Your phone already does.
myCocoon reads what your iPhone already records. Your sleep, your resting heart rate, your kicks, your mood. It works all of that out on the phone itself, and none of it leaves unless you turn on Cloud AI.
Knows you keeps secrets becomes a book.
It knows context.It keeps secrets.It becomes a book.
20 seconds. Meet your baby week by week.
myCocoon is a private AI pregnancy companion for iPhone, free on the App Store and live worldwide. It's especially useful if you're in your second or third trimester, carrying an iPhone, and would rather not hand your symptoms to a stranger's chatbot. The app reads what your Health app already collects, sleep, resting heart rate, steps, and pairs that with what you log yourself: mood, kicks, symptoms, appointments. It speaks up only when something is worth your attention. Privacy is built into how it works, not added afterward. Cloud AI stays off by default. While it's off, your health data, journal entries, and photos stay on your iPhone or in your own iCloud, and we never see them. Turn Cloud AI on, and a daily summary of your Health signals goes to Google's Gemini along with your pregnancy context, so it can answer with your situation in mind. Your journal text and photos stay off Gemini either way.
- Weekly milestones across a full 40-week pregnancy model, narrated by your companion character.
- Ambient signals from your Health app, watched against your own baseline instead of a generic range.
- Kick counts, mood, symptoms, weight, and appointments, all in one place.
- A photo and voice journal that pulls the text off an ultrasound scan you add.
More about myCocoon
What myCocoon is
myCocoon is a private AI companion for fertility, pregnancy, and postpartum, built for the iPhone you already carry. It reads the health signals your phone already collects and says something only when a change is worth your attention. It's live on the App Store worldwide, built for iOS 26 and later.
Who it's for
myCocoon follows you through fertility, pregnancy, and postpartum on the phone you already own. It's for anyone on that path with an iPhone running iOS 26 or later, wherever you are. The app is free to download, with the AI features available as a subscription.
What's inside the app
- Weekly pregnancy milestones on a 40-week clinical model, narrated by a companion character.
- Ambient intelligence that reads HealthKit signals and watches them against your own baseline.
- A kick counter, mood tracking, a journal, bump photos, and appointment tracking.
- A photo and voice journal, including OCR that reads text off ultrasound scans you add.
What happens to your data
Cloud AI is off by default. While it's off, your health data, journal entries, and photos stay on your iPhone or in your own iCloud. Turn Cloud AI on, and your questions go to Google's Gemini along with a structured summary of your pregnancy context, including recent sleep hours, resting heart rate, steps, mood, and kick counts. Your journal text, photos, and voice recordings stay off Gemini either way.
What it deliberately doesn't do
- No ads, no ad-tracking ID, no data sales, no third-party advertising trackers.
- No login, no email, no password. Deleting the app removes what's stored in your iCloud with it.
- No raw HealthKit values in iCloud, following Apple's own rule for health data.
- No diagnosis, no clinical screening. myCocoon isn't a substitute for your midwife, GP, or obstetric team.