4 questionsEvery body speaks. Lena listens.
Built with doctors, Lena’s AI learns your cycle, symptoms and history, with a real doctor one tap away.
Joined by 4,349 women, and counting.
Something’s off. Nobody can tell you what.
“I google my symptoms at 1am and end up more scared than before.”
Ask Lena instead.
“My cycle feels random — symptoms arrive with no warning.”
Every day, mapped to its phase.
“The next appointment is six weeks out.”
The real app, on a real cycle.
Day 15 · Ovulatory
Ask Lena
Ask at 2 a.m. Lena answers from your history, and flags when a doctor should weigh in.
Day 15 · Ovulatory
Log your day
Sleep, energy, what hurts: a few taps. Next week, today will make sense.
Day 1 · Menstrual
Get your report
Your period starts, and Lena recaps the cycle you just had, in plain words.
Day 10 · Follicular
Know your baseline
FertiScore turns 40+ signals into one clinical score, and a plan.
Seven science-backed check-ups.
Backed by research, not a magazine quiz: each one ends in a report with what to do next.
4 questions
Lena’s tipIron-rich lentil & beet bowlIron
Anti-inflammatory turmeric dahlAnti-inflammatory
Chilled rice salad with edamame, cucumber & sesameHydrating
Content that keeps up with your cycle.
Workouts, recipes, articles and videos, picked for you and your phase.
- Workouts that ease off on low-energy days.
- Recipes with Lena’s tip and a step-by-step cooking mode.
- Articles and videos to save for later.
Available now
Need a doctor? Same chat.
Switch from Lena to Doctor Chat: a doctor who sees your cycle typically replies within 15 minutes.
Start Doctor Chat
How Doctor Chat worksFree trial · No card, no commitment
9:41
LenaDoctor Chat
Luteal phase · Day 34
My cycles have stretched past 40 days this year and I keep waking at 3am. Is this perimenopause?
Framing the context…
Your last six cycles ran 27, 29, 33, 38, 41 and 44 days, and Apple Health shows you awake for 40+ minutes on 9 of the last 14 nights.
Checking Lena Science Machine…
Cycles lengthening by a week or more, with broken sleep, is the pattern that marks early perimenopause, and at 44 the timing fits.
Verified with Lena Science Machine
Consensus 2012· STRAW+10 stagingCohort 2008· Sleep in the menopausal transitionA doctor review makes sense here
There’s no single test for perimenopause. A gynecologist can confirm it from your cycle history and talk through what would help the sleep.
Your doctor
Your doctor
I can see the six cycles and the sleep log. Let’s start with what’s waking you, and whether there are hot flushes with it.
Only you and your doctor can read this.
Turns out, it wasn’t just you.
“Week three always wrecked me and I thought that was just my personality. Lena named the luteal drop — now I plan around it.”
“I asked Lena at 2am instead of googling myself into a panic. It answered from my own history, and it was in Arabic.”
What you get
Ask anything. Unlimited.
Like texting a friend who went to med school, with no caps.
A real doctor, not a forum
Doctor Chat connects you to a doctor, right inside Lena.
Watch yourself change, weekly
Cycle, stress, movement, nutrition: one living picture.
Your data isn’t our business. Keeping it safe is.
Here’s exactly what we do with data about your body.
Never sold
Not to advertisers, insurers, employers or data brokers.
Never used to train outside AI
Our AI providers are contractually barred from it.
Delete means delete
Erased within 30 days, and from backups within 90.
Fair questions.
Not seeing your question? The help center has the rest.
Lena is on your phone in a minute.
