Epicenter vs Frost Watch

Epicenter — Global Earthquake Monitoring & Alerts Track global seismic activity with timely earthquake notifications, one of the most comprehensive earthquake catalogs available on a mobile device, and powerful tools for exploring earthquakes in space and time. Built on trusted public seismic reporting agencies, Epicenter helps you monitor, understand, and visualize earthquakes worldwide. MONITOR EARTHQUAKES THAT MATTER TO YOU Receive timely notifications for significant earthquakes worldwide and monitor the places and seismic regions that matter most to you. • Worldwide earthquake notifications • Location-based notifications • Watched locations important to you • Watched seismic regions • Notification history and earthquake summaries • Built on multiple trusted global and regional seismic reporting agencies EXPLORE EARTHQUAKES WORLDWIDE View one of the most detailed interactive earthquake maps available on a mobile device. • Worldwide catalog of 25,000+ recent earthquakes updated from multiple public seismic reporting agencies • Interactive 3D globe with pan and zoom • Explore earthquake distributions beneath the Earth's surface with interactive 3D Seismicity • Time Explorer with day-by-day or hour-by-hour playback • Earthquake List View with sorting, filtering, and search • Filter the List View for non-earthquake events like landslides, quarry blasts, explosions, and more • Fly directly to earthquakes and locations of interest UNDERSTAND GLOBAL SEISMICITY Understand earthquakes as part of a larger geological system. • Magnitude and depth visualization • Worldwide plate boundaries • Global fault datasets • Detailed earthquake data • Multiple terrain styles • Geological descriptions and annotations BUILT FOR APPLE DEVICES Designed to feel at home across the Apple ecosystem. • New - Home Screen Widgets • iPhone and iPad support • Light and Dark modes • Apple Watch companion • Mac compatibility via iPad support BUILT BY A SEISMOLOGIST • Designed for accuracy, transparency, and insight. PREMIUM FEATURES Epicenter+ expands Epicenter with advanced notifications, enhanced visualizations, and deeper exploration tools. Everything you enjoy in Epicenter remains free. No ads. Epicenter+ supports continued development of worldwide earthquake monitoring and analysis tools. Epicenter delivers timely notifications as earthquake solutions are published by trusted public seismic reporting agencies. Because Epicenter relies on published earthquake solutions rather than earthquake early warning infrastructure, it is not an earthquake early-warning system and should not be relied upon for emergency response or life-safety decisions. Epicenter+ Subscription Terms When you purchase an Epicenter+ subscription, payment will be charged to your Apple Account. Your subscription begins with a 30-day free trial. Unless canceled before the trial ends, your subscription will begin automatically and your Apple Account will be charged. Subscriptions are billed automatically at the beginning of each monthly or annual billing period and renew until canceled. Your account will be charged for renewal within 24 hours prior to the end of the current subscription period. Manage your subscription and turn off auto-renewal at any time in Settings → [your name] → Subscriptions on your device or through the App Store. To avoid being charged for the next billing period, auto-renewal must be turned off at least 24 hours before the current period ends. If you cancel, your subscription remains active until the end of the current billing period. When your Epicenter+ subscription ends, the app automatically returns to its standard free mode. All billing and refunds are handled by Apple. Epicenter cannot process refunds directly. Refund requests must be submitted to Apple and are granted at Apple's discretion. Privacy Policy: https://seismology.rocks/epicenter Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Your weather app says 34°F. But at ground level - where your plants actually live - it's 26°F. That difference is the reason you keep losing plants to "surprise" frosts. Frost Watch uses atmospheric science to predict what's really happening at ground level. Instead of relying on a simple temperature threshold, it calculates frost risk using dew point, cloud cover, wind speed, humidity, and radiative cooling physics - the same factors professional meteorologists use. HOW IT WORKS Frost forms through radiative cooling: on clear, calm nights, the ground loses heat to the sky and can drop 6-8°F below the forecast air temperature. Frost Watch models this process using peer-reviewed research from the FAO, NOAA, and published atmospheric science, then distills it into a simple 0-10 risk score. Every evening, you get a score, an explanation of why, and specific advice on what to do. FEATURES - Ground Temperature Estimation See both the forecast air temperature and the estimated ground-level temperature side by side. Understand why frost can form even when the forecast says 34°F. - 0-10 Risk Score A single number that accounts for cloud cover, wind speed, dew point, humidity, and recent precipitation. Each factor's impact is shown so you understand exactly why tonight is risky - or safe. - 7-Day Frost Forecast Plan your week with daily overnight frost risk scores. Tap any day for hourly breakdowns and detailed weather factors. - 67 Plant-Specific Alerts + Pipes Add your plants from a curated database of vegetables, fruits, flowers, and tropicals. Each has scientifically researched damage and kill temperatures. When ground temps approach your plants' thresholds, you'll see exactly which ones need protection and what to do. - Evening Notifications Get alerts at a time you choose (default 7 PM) so you have time to cover plants or bring containers inside before nightfall. Set your risk threshold, lookahead window (up to 7 days), and quiet weekends. Notifications are scheduled in advance and fire even if you don't open the app. - Daytime Frost Detection Most apps only check overnight lows. Frost Watch also scans for rare daytime freezes - devastating for spring blooms - and alerts you the evening before. - Home Screen Widgets Small and medium widgets show tonight's risk score and upcoming forecast at a glance. No need to open the app to know if tonight matters. - Works Everywhere Enter any location worldwide. Uses Open-Meteo weather data with automatic timezone detection. BUILT FOR GARDENERS, BACKED BY SCIENCE Frost Watch was built because generic weather apps don't tell you what you actually need to know: will frost form tonight, and should I do something about it? The answer depends on more than temperature. It depends on whether the sky is clear enough for radiative cooling, whether wind will mix the air and prevent inversions, whether the dew point is close enough to buffer heat loss, and whether recent rain changed the soil's thermal properties. This app does that math for you and gives you a clear answer every evening. °F or °C. 12h or 24h. Your units, your schedule, your plants. No account. No subscription. No tracking. Ever. All your data stays on your device. Just open the app and protect your garden.