A digital twin for perimenopause
PeriCare tracks your hormonal cycle and the feedback loop between mood, sleep, and symptoms—so you can finally see where to intervene. Evidence-grounded, on-device, and actually legible.
Period trackers break when cycles become irregular. Wearables give you data without cycle context. There's a gap—and it's exactly where perimenopause lives.
Your hormonal cycle is irregular. The feedback loop between sleep, mood, and symptoms feeds on that chaos. Model both.
Everything runs locally using Apple Foundation Models. No account. No cloud. Your data never leaves your phone.
Every suggestion is tagged to NAMS, SWAN, or a peer-reviewed RCT. The app learns what actually works for you.
Free tier forever. Premium coming later.
The Digital Twin shows you where you are in your cycle and watches the feedback loop. A personal-baseline radar reads "better/worse than usual for you" — not population norms. HRV of 42 ms isn't bad; it's bad for you.
Cycle phase · STRAW+10 staging · correlation spotlight · cycle-diff card · medication effect
The on-device Advisor picks 1–2 moves each day from a curated library of 22 evidence-tagged interventions. Movement, sleep, CBT breathing, nutrition—nothing is invented.
NAMS 2023 · SWAN clusters · source citations · thumbs-up / thumbs-down feedback
One simple log: mood, symptoms, period, medication, stress. The Weekly Loop Diagnostician synthesizes the last 28 days into 2–4 findings and a doctor-ready PDF you can bring to your clinician.
Daily quick mood · weekly synthesis · PDF export · full JSON walk-away export
Nobody else models the feedback loop. Every competitor is either a period tracker (one cycle) or a physiology tracker (no cycle).
Apple Foundation Models makes us the first privacy-by-default AI advisor in this space. That's table stakes for enterprise health and benefits.
Every suggestion is traceable to a source and narrows with your feedback. We improve without collecting raw data.
Reads as "better/worse than usual for me." Small feature, giant felt-difference—and invisible if you don't model the twin.
PeriCare launches on the App Store in May 2026. Join the list to get notified the moment it goes live.