Anshin
A household disaster-readiness companion for Japanese families that turns JMA earthquake, typhoon, landslide, and heat-wave alerts into personalized action checklists based on who's at home — toddlers, elderly relatives, pets.
Japanese households, especially those with young children, elderly relatives, or pets, needing clear next steps when severe weather or earthquake alerts hit
- Multi-hazard alert feed combining JMA earthquake, rainfall, heat, and typhoon warnings with plain-language explanations
- Household vulnerability profile that tailors checklists (e.g., 'move grandma's meds upstairs,' 'bring the dog crate to the safe room')
- Pre-evacuation checklist generator that adapts to your registered hazard map and route
- Offline mode with cached alerts, contact lists, and maps when networks are congested after a quake
Japan is concurrently battling severe thunderstorms and landslide risk in East Japan, near-40°C heat in the west, and a fresh M7.1 Kumamoto earthquake — consumers are primed for a single tool that bridges multiple hazard types.
Multiple Japanese-language articles rank the top 10–12 防災アプリ, QuakeReady alone shows 10K+ families and 4.6 stars, and '2週間天気'-style disaster preparedness queries are an established category in JP.【2026年最新】災害、防災アプリおすすめ12選｜無料で使える厳選アプリを用途別に徹底解説 ↗QuakeReady — 家族を守る地震防災アプリ ↗
Market is saturated: Yahoo!防災速報, 特務機関NERV防災 (covers quake/tsunami/volcano/landslide/flood/J-Alert), NHK防災, 全国避難所ガイド, Safety Tips, and QuakeReady already address multi-hazard + family planning, leaving very little differentiated room.家族の安全を守る!今すぐ使いたいおすすめ防災アプリ10選 ↗QuakeReady — 家族を守る地震防災アプリ ↗
QuakeReady charges $6.99/mo or $39.99/yr or $99.99 lifetime, proving some WTP, but dominant players (Yahoo!防災速報, NERV防災, NHK) are free, creating strong downward pressure on conversion for a new entrant.QuakeReady — 料金プラン ↗【2026年最新】災害、防災アプリおすすめ12選 ↗
Japan is perennially multi-hazard (earthquakes, typhoons, landslides, heat waves) and climate change is intensifying events; an evergreen, non-trend-driven category with structural demand.Japan Disaster Apps and Earthquake Typhoon Survival Guide ↗Disaster Preparedness in Japan for Foreigners [2026 Guide] ↗
JMA data is accessible via paid APIs (Alert-JP, x402 pay-per-call, Open-Meteo MSM) and reference apps like QuakeReady prove the build is achievable, though real-time reliability and JMA redistribution rules add non-trivial engineering effort.Alert-JP API - Real-time Emergency Alert Delivery ↗Japan Weather Forecast & Warnings API — x402 pay-per-call ↗QuakeReady — 家族を守る地震防災アプリ ↗