PlainHygiene

PlainHygiene is a reference library of practical, sourced hygiene guidance — 1,088 features across 18 topics, from WHO's 6-step handwashing technique to menstrual health, food safety, disaster sanitation, and caregiving for kids, elders, and people with chronic conditions.

Every fact is drawn from public health authorities: the World Health Organization, the CDC, UNICEF, USDA, OSHA, EPA, FDA, FEMA, the Sphere Association, and similar bodies — with citations you can check yourself, right in the app.

WHAT'S INSIDE
• Handwashing & hand hygiene (WHO's 6-step technique, a guided timer, hand sanitizer guidance)
• Menstrual & reproductive hygiene
• Food hygiene & safe handling
• Body & personal hygiene
• Sanitation infrastructure & waste management
• Life-stage hygiene: infants, kids, teens, pregnancy, elders
• Low-water, disaster & emergency hygiene
• Disease prevention & hygiene science
• Household, laundry & environmental hygiene
• Occupational & workplace hygiene
• Travel, outdoor & camping hygiene
• Pet, animal & zoonotic hygiene
• Community, school & public-space hygiene
• Special populations, disability & chronic-condition hygiene
• Culture, language & localization notes
• A full reference library & glossary

Plus routine-building, reminders, and habit-tracking tools to turn any of this into a daily practice — at your own pace, with no streak-shaming.

BUILT DIFFERENTLY
• Works completely offline. Every fact ships inside the app — nothing loads from a server, because PlainHygiene doesn't have one.
• No account, no login, ever.
• The app shows ads served by Google AdMob; a one-time Remove Ads purchase removes them. No account needed.
• The only network calls this app can ever make are opt-in, unauthenticated fetches of public WHO/World Bank hygiene statistics — off by default, and nothing about you is ever sent when you turn it on.
• Build routines, set reminders, track streaks, add a step to your calendar, and export or print your data — all stored only on your d…