Stop guessing what's wrong. Start understanding your body.
Made Specially — for bodies that don't follow the rules.
Co-founded by women who've lived it, and shaped with you from day one.
You've been dismissed. Misdiagnosed. Told it's 'just hormones'.
Years without answers
In the UK, endometriosis takes an average of 9 years and 4 months to diagnose (Endometriosis UK, March 2026).
No one gets it
Most health apps weren't built for complex hormonal or cycle conditions.
Too much noise
Conflicting advice and clinical jargon leave you more confused than when you started.
Built to make sense of the complicated.
Track symptoms. Spot patterns. Finally feel supported.
Daily check-in — log how you feel in about 30 seconds.
Patterns you confirm — Sister Health spots what repeats; you say what's true.
Doctor's Report — export a PDF for your next appointment.
Resources & community — clear health information, plus a community on Facebook.
What you log is yours — used to show you your own patterns and build your Doctor's Report, nothing else.
See how it worksBuilt for the conditions that get dismissed.
Explore information on endometriosis, adenomyosis, PMOS (PCOS), PMDD, fibroids, perimenopause, irregular cycles, pelvic pain and more — alongside cycle and symptom tracking.
Explore the conditions we support →"I've been told it's normal so many times I stopped asking."
"It took over a decade, and almost losing my life, before a doctor finally said: now I understand why you've been in so much pain."
Isabella · endometriosis, adenomyosis, PMOS
"My diagnosis came with a prescription and a 'good luck.' So I figured it out myself, log by log."
Jade · endometriosis
What happens next
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1
Download Sister Health
Available now on iOS and Android.
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2
Create your account
Set up your account and get ready to start tracking.
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3
Start your first check-in
Log symptoms, track your cycle and explore clear women's health resources.
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4
Help shape what comes next
Share feedback directly with us. What you tell us genuinely influences what we build next.
Your body has been trying to tell you something. Start understanding it.
A space where women actually understand what you're going through, and where you don't have to figure it out alone anymore.
Available now on iOS and Android