QuakeLink vs Seismometer ∞

QuakeLink is a free, offline emergency communication app designed for earthquakes and disaster situations. When internet and cellular networks are unavailable, QuakeLink helps people nearby find each other, send emergency messages, and stay connected when every second matters. OFFLINE EMERGENCY COMMUNICATION • Send short emergency messages without internet using nearby devices • Press and hold the emergency button with loud whistle and SOS flashlight pattern • Predefined quick messages such as SOS, I am safe, and Need help • Designed to work even when mobile networks fail FIND NEARBY PEOPLE • Discover nearby devices using peer-to-peer communication • View approximate distance and direction when supported by the device • Automatic fallback when advanced hardware features are unavailable • Built for real-time awareness during emergencies EARTHQUAKE INFORMATION • View recent earthquakes from reliable public data sources • Filter by region and minimum magnitude • See earthquake locations on an interactive map • Access key details such as magnitude, depth, and time DESIGNED FOR RELIABILITY • Optimized for low battery usage during emergencies • Automatic behavior adjustments when battery is low • Clear and simple interface focused on critical actions PRIVACY BY DESIGN • No account required • No tracking or advertising • Messages are processed locally and stored securely on your device • Core emergency features work without an internet connection BUILT FOR REAL EMERGENCIES QuakeLink is designed to be simple, fast, and dependable when it matters most. It is not a replacement for official emergency services, but a complementary tool designed to assist people during emergencies. Free to use. No ads. No accounts.

Seismometer ∞ — earthquake detector, vibration meter, and seismograph in your pocket. Turn your iPhone into a precision seismometer and vibration meter. Detect tremors, monitor seismic waves, and visualize ground motion in real time. • Real-time seismograph visualization with precision charts • Track X, Y, Z axis vibration readings with detailed graphs • Monitor earthquake tremors and ground movement • Professional-grade sensitivity for reliable measurements • Clean, intuitive interface for easy data interpretation Perfect for earthquake awareness, physics experiments, scientific research, and education. Whether you're a researcher, student, or curious explorer, discover the hidden world of seismic activity. Privacy Policy: https://www.icloud.com/pages/0bcX7C5KVMC35FbMWk-FNfjWg Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/