What is PHapp®?
Free verified alerts from trusted sources — know what matters, know what to do
PHapp — "Know What Matters. Know What To Do." — is a free service that delivers verified alerts from trusted official sources like the CDC, National Weather Service (NOAA), FDA, EPA, USDA, and local agencies. It covers weather, health, environmental, and safety risks with clear action steps in 50+ languages with human-reviewed translations.
PHapp is built by Hub Public Benefit Corp, a Delaware Public Benefit Corporation. There are no ads, no data sales, and no tracking.
What PHapp Covers
PHapp provides comprehensive coverage across 41 active risk and hazard categories, including weather emergencies, disease outbreaks, environmental hazards, food and product recalls, and public safety notifications.
Where PHapp Is Available
PHapp serves 3,432 communities across the United States, including territories and tribal nations, with over 3.35 million alerts issued as of 2025.
Three Ways to Access PHapp
- App: Download free from the App Store (iOS) or Google Play (Android)
- Web: Visit ph.app in any browser
- Text/SMS: Currently available in beta
No sign-up is required for the app or web. Just open it, set your location, and start receiving alerts.