← All ideas IDEA-105 6.9 us health-companion developed

One app for irregular cycles, glucose curves, acne flares, mood swings, and supplements — finally see what's connected, not just one axis at a time.

Problem

PCOS sufferers run 3-4 apps in parallel — Flo (cycle), MyFitnessPal (diet), Notes for symptoms, email folders for labs — because mainstream period trackers (Flo, Clue) assume a regular 28-day cycle and don't surface multi-axis correlations (acne ↔ insulin ↔ cycle ↔ mood ↔ supplements). Result: siloed data, zero insight, and a 7-minute endo visit where they can't show patterns. Add a growing CGM-for-non-diabetics cohort (FreeStyle Libre 14-day for diet experimentation) and the gap widens further.

Audience

US women 22-40 with diagnosed or suspected PCOS (often comorbid insulin resistance), frustrated by mainstream period apps that break on irregular cycles, often on metformin or birth control, willing to pay $5-15/mo for a tool that surfaces 'what's actually working'

Reasoning

Source signals

SIG-20260426-us-health-companion-pcos-multi-overlay-symptom-tracking: "Flo and Clue are period trackers. Go Go Gaia is an all-in-one"
SIG-20260426-us-health-companion-pcos-glucose-symptom-overlay: "Glucose tracking added - See how your meals, sleep, and stress impact your energy and PCOS symptoms"

What we ship

**Core features (MVP)**

**Irregular-cycle-tolerant tracker**: NO 28-day assumption. Cycle phases coded by real observed events (period start, ovulation tests, BBT) — adaptive timeline, not template.
**Multi-overlay timeline**: ONE horizontal timeline with overlays — cycle phase color zone + glucose curve (if CGM paired) + symptom dots (acne, mood, bloat) + supplement marks + medication intake. All in one view.
**Symptom voice/text log**: 5-second quick log "acne 8, mood 4, bloat 6". AI parses free-text → tags. Never interprets ("you have insulin resistance").
**Correlation report (Pro)**: weekly statistics — "this 4-week period: glucose spikes >140 correlate with acne 2 days later (12 events)". Pure correlation, not diagnosis.
**Endocrinologist PDF (Pro)**: 1 click → 1-page PDF with timeline + top correlations + medication adherence + lab values (manual entry). Built for 7-minute visit.
**CGM integration (FreeStyle Libre + Stelo + Lingo)**: read-only pull via LibreView API + Apple Health. Glucose curve overlaid with cycle phase + symptoms.
**Anti-features**: NO "you have PCOS" diagnosis flow, NO "eat this / don't eat that" diet prescription, NO "take berberine" supplement recommendations, NO calories or macros.

**Primary user flow**

1. Signup, pick: "diagnosed PCOS / suspected / fertility-tracking / lean PCOS / insulin-resistant subtype". UI adapts.

2. 3-minute onboarding: Apple Health pair (cycle, weight), CGM pair if any, lab values bulk-entry (TSH, fasting insulin, AMH — manual).

3. Daily use: 30 seconds — quick log symptoms + supplements. Period start → tap "period started" (adaptive, not calendar).

4. Every 4 weeks — weekly correlation report + suggestion "consider pulling latest labs from MyChart".

5. Free: 14-day trial + basic single-axis correlation. Pro $11.99/mo or $99/yr: unlimited history, multi-axis correlation, endo PDF, CGM integration, lab tracking.

**What it looks like**

**Landing**: "Flo doesn't fit your cycle? It's not you." hero. Side-by-side: Flo's broken 28-day calendar vs our adaptive timeline.
**Main app screen**: horizontal timeline (last 30 days) with all overlays. Top: quick-add buttons (symptom / supplement / lab / period).
**Endo PDF**: top — adaptive cycle timeline; middle — top 5 correlations (horizontal bars); bottom — meds + recent lab values.

**MVP build plan (13 days)**

Day 1-3: Postgres schema (cycles, symptoms, supplements, glucose_readings, labs), FastAPI, Stripe, irregular-cycle phase calculation logic.
Day 4-6: Apple HealthKit bridge (PWA workaround), LibreView API integration, glucose overlay rendering.
Day 7-9: AI symptom-text-to-tags prompt, multi-axis correlation engine (sliding-window confidence scoring).
Day 10-11: timeline UI with all overlays (Recharts/D3), endo PDF generator.
Day 12: paywall, lab manual entry UI, polish.
Day 13: landing, deploy, launch on r/PCOS.

Reasoning

Dual pain from SIG-pcos-multi-overlay (Flo/Clue break on irregular cycles, no multi-axis correlation) + SIG-pcos-glucose-symptom-overlay (CGM-for-non-diabetics cohort growing fast — Stelo, Lingo, Levels — but nobody offers single-timeline glucose overlay on top of cycle + symptoms). Existing PCOS apps (Posiva, Cysta, Belle Health, Heylixir, Cysterhood, PCOS Pro) are either narrow (cycle-only or symptoms-only) or UX-overloaded (Go Go Gaia tracks 22 sport types + nutrition + everything = paradox of choice). Our wedge: focused on ONE multi-overlay timeline + endo-prep PDF — not an all-in-one health platform but a specifically-PCOS visit-prep tool. CGM integration via LibreView (no proprietary hardware) is an open lane — nobody offers PCOS-specific glucose overlay. Regulatory-safe: we do NOT diagnose, do NOT prescribe diet or supplements (RD/MD territory), do NOT manage insulin (FDA territory). Lesson from IDEA-047: AI is used ONLY for free-text symptom log → user's own tags (user's words → structured), never for medical interpretation; correlation report output is phrased as statistics ("12 events"), not diagnosis ("you have insulin resistance").

Quick competitive read

**Flo / Clue** — period-only, break on irregular cycles, not PCOS-specific.
**Posiva PCOS Tracker** — recently added glucose tracking as a separate tab, not overlaid.
**Cysta / Cysterhood** — community-first, weak tracking.
**Belle Health** — irregular-cycle adaptive but no glucose / no endo PDF.
**Heylixir / PCOS Pro (Premom)** — fertility-focused, no multi-axis correlation engine.
**Go Go Gaia** — all-in-one (22 sport types, nutrition, etc.), paradox of choice, not PCOS-focused enough.
**Bearable** — general, weak PCOS-specific UI.
**White space**: medium-high. Single-timeline multi-overlay (cycle + glucose + symptoms + supplements) + adaptive irregular-cycle + endo PDF + CGM integration — nobody has it in one utility. Score hint: competitive_pressure 5-6.

Initial pricing hypothesis

Free: 14-day trial + basic single-axis correlation. Pro: $11.99/mo or $99/yr — unlimited history, multi-axis correlation, endocrinologist PDF, CGM integration (FreeStyle Libre + Stelo + Lingo), lab tracking. Slightly above Posiva ($7.99) and Belle Health ($9.99) — premium positioning justified by CGM integration + endo PDF. WTP is high: PCOS patients spend $50-200/mo on supplements + functional medicine, $12/mo for a tool with real insights pays back with one avoided consultation.

Distribution hypothesis

1) **r/PCOS (180K+) + r/InsulinResistance + r/PCOSAndPregnant** — solo-dev "Built this because Flo was useless and I was running 4 apps. Multi-overlay, irregular cycles, CGM ready." Authenticity wins.

2) **Instagram PCOS dietitian influencers** — affiliate with RD / PCOS specialists (Cory Ruth The Women's Dietitian, Nourished With Nina, Nicole Jardim) at 30% per-conversion.

3) **Functional medicine clinic outreach** — 30+ MD-supervised functional medicine practices with free 6-month Pro for practice manager + patient flyer.

Source signals (4)

SIG-pcos-multi-overlay
SIG-pcos-glucose-symptom-overlay
SIG-20260426-us-health-companion-pcos-multi-overlay-symptom-tracking:
SIG-20260426-us-health-companion-pcos-glucose-symptom-overlay:

Score breakdown

market_size	6/10
pain_severity	7/10
build_feasibility	6/10
speed_to_revenue	7/10
regulatory_safety	5/10
competitive_pressure	9/10
recurring_revenue_fit	8/10

MVP stack

frontend	Cloudflare Pages + React + Tailwind
backend	Railway + FastAPI + Postgres
ai	Claude Sonnet 4.6 ONLY for free-text symptom log → tags conversion ('I had bad acne and felt bloated' → ['acne_severity:7', 'bloating:7'])
payments	Stripe Subscriptions
storage	Postgres
external_integrations	['Apple HealthKit (cycle, sleep, weight, glucose if user has CGM paired with Health app)', 'FreeStyle Libre LibreView API (read-only glucose pull)', 'Stripe']

Estimated build: 13 days

Regulatory

soft_block

Blocks: D-006

SaMD-creep risk (D-006 soft) PLUS heightened reproductive-health-data sensitivity. AI usage is correctly bounded: only free-text symptom log → user-supplied tags ("acne 8, mood 4, bloat 6" → ['acne_severity:7','bloating:7']). Anti-features explicitly forbid "you have PCOS" diagnosis, diet prescriptions, "take berberine" supplement recommendations, calorie/macro framing. Multi-overlay timeline + correlation report MUST stay as statistics ("12 events", "glucose spikes >140 correlate with acne 2 days later"), never diagnostic ("you have insulin resistance"). Endo PDF must be "user-supplied data formatted for clinical review", not "evidence of PCOS / insulin resistance". CGM integration via LibreView API is read-only (correct) — write-back to glucose monitor or insulin-recommendation logic would cross hard into FDA SaMD Class II diabetes-management territory. US regional advisory — most exposed IDEA in this batch on data-protection grounds: PCOS data is reproductive + endocrine + glucose + symptom data, all categories of heightened sensitivity post-Dobbs (2022). WA MHMDA EXPLICITLY covers "reproductive or sexual health information" + "biometric data" + "physical or mental health information related to a consumer's status as a transgender or nonbinary individual"; PCOS data hits multiple categories. California: CCPA "sensitive personal information" covers health/sexuality — opt-in consent + limit-use rights apply. CMIA does NOT apply directly (no provider relationship). Texas, Idaho, Missouri, Alabama, Louisiana, Mississippi: post-Dobbs abortion restrictions create defensive-design imperative — PCOS often involves fertility/birth-control discussions; do NOT log abortion-related events, do NOT sell or share data with adtech, do NOT integrate with services that may be subpoenaed for reproductive-health prosecution. Apple HealthKit / LibreView reads must follow API ToS strictly. FTC Health Breach Notification Rule applies. Glucose data + diabetes-adjacent flow: even though target is non-diabetics, CGM data triggers consumer-product-safety-style FDA scrutiny on misuse claims — keep all glucose UI as "your data, observed", never "your blood sugar is concerning" or "you should adjust dose". BUILD RECOMMENDED with the strictest guardrails in this batch: (1) onboarding disclaimer "this app does not diagnose PCOS, prescribe diet, recommend supplements, or manage diabetes — it is a structured log + visit-prep tool"; (2) WA MHMDA-compliant consent with reproductive-health-data-specific opt-in flag + biometric-data opt-in; (3) defensive geofence: data-sale-default-OFF for users in abortion-restricted states (TX, ID, MO, AL, LA, MS); (4) NEVER log abortion-related events (deliberate spec exclusion + consent text disclosure); (5) anti-diagnosis copy audit before launch — the correlation report is the highest-risk surface; (6) endo PDF watermark "user-supplied data, not a clinical assessment, not a diagnosis"; (7) CGM integration is read-only; never auto-suggest dose changes; (8) self-service data-export + delete tool (consumer rights WA MHMDA + CCPA).

Competitors (0)

No competitors profiled yet.