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← All ideas IDEA-084 6.0 japan health-companion developed

Двуязычный visit-prep + visit-recap для экспатов в Японии — что сказать врачу, что врач сказал, между приёмами

Problem

Англоговорящие экспаты с хроническими заболеваниями в Японии (T1 диабет, астма, IBS, гипертензия, аутоиммунные) каждый визит к врачу проходят через одну и ту же боль: (a) подготовить bilingual symptom summary, (b) понять что сказал JP-врач и выписал, (c) пронести continuity между 7-минутными приёмами с интервалом 4 недели. AMDA телефонный перевод существует, но только дневной и трудоёмкий. お薬手帳 — для dispensing, не для symptom-discussion.

Audience

Англоговорящие экспаты в Японии (25-55 лет) с хроническими заболеваниями требующими частых визитов (1-3 в месяц), часто вне Tokyo (где AMDA in-person сложнее), на NHI 70% — accumulative coordination burden — главная нагрузка

Reasoning

Source signals

  • SIG-20260426-japan-health-companion-en-chronic-condition-doctor-translate — "struggling to express their symptoms in English / language and culture barrier"
  • SIG-20260426-japan-health-companion-en-pregnancy-postpartum-expat — overlap (expat health-system navigation)
  • SIG-20260426-japan-health-companion-en-adhd-clinic-roulette — overlap (chronic-care continuity for expat ADHD)

What we ship

**Core features (MVP)**

  • Pre-visit builder: EN narrative → bilingual handout (EN reference + JP-medical-style summary)
  • Post-visit recap: prescription photo + user-typed visit notes → Claude structures into bilingual entry (NO audio recording of doctor; Stage 2 may add patient self-recap voice memo with explicit "you are recording yourself" UI)
  • Chronic-condition timeline (visits, meds, labs)
  • お薬手帳 digital twin (bilingual dispensing labels)
  • Pre-validated phrase cards for T1 diabetes, asthma, IBS, hypertension, autoimmune
  • One-page bilingual PDF for clinic handoff

**Primary user flow**

1. r/japanlife / Japan Handbook discovery

2. 4-screen onboarding (condition picker, EN-default)

3. Day 1: pre-visit builder in 5 minutes

4. Day 1 evening: post-visit photo+voice → structured recap

5. Day 14: 1,500 JPY/month upgrade

**What it looks like**

  • **Landing**: "Your Japanese clinic visits, in two languages." hero, clinic-handout photo
  • **Main**: timeline + big `Prepare for Visit` button + recent recap
  • **Output**: bilingual A4 PDF (EN top, JP-medical-style bottom)

**MVP build plan (12 days)**

  • Day 1-3: schema, Claude API with condition-specific structured prompts (T1D, asthma, IBS, HTN, autoimmune)
  • Day 4-7: pre-visit builder UI, JP-medical-tone prompt engineering + QA
  • Day 8-9: post-visit recap (camera + user-typed notes + Claude), bilingual prescription lookup, APPI consent + DPO email + AI accuracy disclaimer UI
  • Day 10-12: timeline view, WeasyPrint bilingual PDF, EN landing, Stripe, deploy

Prompt-injection protection mandatory: user photos/voice are untrusted per CLAUDE.md.

Reasoning

Recurring high-pain across r/japanlife (5+ identical threads multi-year), Japan Handbook chronic-condition guides, japanhealthnavigator.com boutique service (validates WTP at $100-200/visit). AMDA phone-only and real-time. White space: async pre+post-visit software complement. AI scope minimal-risk (structuring + translation help, not diagnosis). Stack clean. Build 12 days. Recurring-revenue fit excellent (chronic = monthly visits = monthly use).

Quick competitive read

Market density: **low** (5 competitors profiled, all in adjacent categories — none are direct competition).

  • **AMDA International Medical Information Center** (CMP-084-amda-international-medical-info-center) — free phone interpretation, real-time live, hospital-initiated, daytime only. Complement, not competitor.
  • **Japan Healthcare Info** (CMP-084-japan-healthcare-info) — boutique navigation concierge at hundreds USD per visit. Strongest WTP validator in the category — proves expats pay for healthcare-system help.
  • **DeepL** (CMP-084-deepl) — generic NMT at $8.74-$57.49/mo. Not medical-tone, no chronic-condition templates, no longitudinal storage. We layer above it as a vertical.
  • **LINE Doctor** (CMP-084-line-doctor) — JP-only telehealth (no English UI). Orthogonal to our use case (replaces in-person visit; we support in-person visits with existing JP doctor).
  • **Pictal Health** (CMP-084-pictal-health) — EN/US-only manual templates + consulting. Validates the "visual symptom prep" idea + serves as the "no recording, no diagnosis" precedent that has worked in market for 7 years without regulatory issue.

**White space**: bilingual EN↔JP + chronic-condition-tuned + async pre+post-visit (asynchronous, not real-time) + self-serve software at subscription pricing. No competitor occupies all four axes.

**Differentiation wedge**: BILINGUAL EN↔JP + chronic-care continuity + structured user-typed note (NOT audio recording of doctor). The "no recording" choice is both regulatory-protective AND product-superior — Pictal Health proves visual user-driven prep beats post-hoc audio recap for chronic-care.

Initial pricing hypothesis

Free 14-day trial → **1,500 JPY/month** or 15,000 JPY/year. Stage 2 premium 2,500 JPY/month for family/multi-condition.

Distribution hypothesis

1. r/japanlife organic answers in recurring "English doctor" threads (respect rules)

2. EN SEO: "English speaking doctor Japan", "chronic condition expat Japan"

3. Japan Handbook / GaijinPot sponsored content

4. Stage 2: Tokyo Mental Health / IMHPJ partnership

Source signals (3)

  • SIG-20260426-japan-health-companion-en-adhd-clinic-roulette
  • SIG-20260426-japan-health-companion-en-pregnancy-postpartum-expat
  • SIG-20260426-japan-health-companion-en-chronic-condition-doctor-translate