What phase are you in?
Get clarity on your foundational personal health history, your cycle, and any symptoms you are experiencing.
Take the free diagnostic →Modernizing women’s health, one woman at a time
Hot flashes. Brain fog. Sleepless nights. Nothing is wrong with you.
Nothing is wrong with you.
It’s all completely natural.
You’re simply not getting the care you need.
Private by designEvidence-basedBuilt for women
Personalized, precision medicine
Your symptoms are real.
Capture changes in real-time.
Fluxx App Features
Get clarity and know what's ahead for preventative care
Record and track symptoms in real-time via voice or chat
Share comprehensive patterns and progress with your clinician
Get local intel on where to find hormone therapy in-stock near you
Plus, get all the latest hot takes, hidden gems, pro-tips, and game-changers to dish with your besties
What has you feeling less like yourself?
Pick what feels true today. Fluxx turns quick check-ins into patterns you can bring to the clinician you trust.
Prevention is everything
The best care starts earlier than you think
There are an overwhelming 500+ known symptoms tied to declining estrogen that can present as early as your mid-thirties. You are the first generation with the scientific support to get ahold of symptoms early, before they get ahold of you. Welcome!
Start early
Declining estrogen can show up years before menopause is on your mind.
Get personal
Your phase or window belongs in the Fluxx Diagnostic, not in a guess from a chart.
Bring evidence
A confidential summary helps your clinician see the pattern and align care.
Drag the dial to connect age, cycle pattern, symptoms, and care prep.
Ages are approximate. The Fluxx Diagnostic maps your personal phase or window from your answers, then turns it into a clinician-ready summary.
Fluxx connects the dots for you
- Take the free Fluxx Diagnostic for personalized care.
- Track symptoms that reveal patterns.
- Improve clinician visits with precision data.
- Locate hormone therapy in-stock near you.
Don’t go it alone.
Start with FluxxCapture what changes day to day
Log symptoms by voice or chat in the moment, so patterns do not depend on memory later.
Track your progress →Find hormone therapy in stock
Search nearby pharmacies for available patches and keep the next care step from turning into phone tag.
Locate a pharmacy →Choose your Fluxx Plan
Each plan starts with the diagnostic. Paid plans unlock more ongoing tracking, care prep, and pharmacy search.
Start with the diagnostic and a focused tracker.
Core access
Try for free- Fluxx Diagnostic
- Four-week symptom tracker
- Clinician-ready summary
$150 annual option
Active care access
Choose Femmes- Everything in Fluxx Free
- Unlimited symptom tracking while active
- Voice and chat check-ins
- Updated clinician-ready summaries
- Patch Finder access
- Patterns to share before appointments
Lifetime access
Lifetime access
Choose Phenoms- Everything in Fluxx Femmes
- Unlimited lifetime tracking
- Lifetime clinician-ready summaries
- Patch Finder access
- Long-term symptom history
- Ongoing care prep
- No recurring payment
Fluxx is for women everywhere
As an OB/GYN and menopause specialist, my career spanned the twenty-year arc of the faulty 2002 Women’s Health Initiative trial, which overnight led to the cessation of treating peri/menopausal women with hormones. Though later proven wrong, it left an entire generation of women without care.
As a practitioner, I witnessed the most devastating fallout: wide-sweeping fear and mass confusion we are still correcting today. Untenable hot flashes, brain fog, anxiety, insomnia, and 500+ symptoms left untreated. An unhealthy reliance on pharma / alcohol. Collateral damage in the form of the loss of identity, marriages, jobs, mental health, and the subsequent rise of disease and mortality.
The most dangerous byproduct of all? Silence. Menopause was taboo, hushed, and wholly ignored — by clinicians, educators, scientific studies, and culture. That stops here and now with you and me.
Together, we’re putting your preventive care and well-being first, while leaving a collective legacy of de-identified data, with the mission to advance women’s health globally for generations to come. Thank you for being here.
Dr. Heidi Snyder Flagg, M.D.Founder, Fluxx & Spring OB/GYNMenopause Society Certified Practitioner
Private by design
Check-ins stay secure in the context of care
Your check-ins, voice notes, and messages are as private and encrypted as if you were behind closed doors of your clinician's office.
Only you can share personal information
Your data is safe with us. Only you are in charge of sharing your Fluxx Diagnostic with your clinician, friends, or partner.
De-identified data with confidence
All identifiers come off before data is reviewed, so we can contribute to advancing women's health science with peace of mind.
Your trust is earned by our transparency
No legal maze around your rights. Privacy and HIPAA notices one-click paths to request, restrict, and review.