View real-time river gauge data for specific locations along the Upper Mississippi River. Monitor water levels, flow rates, and historical trends. Receive alerts for significant changes. Share data with other users or save for later reference.
by Timothy Johnson★ 5.03 ratingsNavigationFreeData updated 2026-09-06
View real-time air quality data from EPA stations. Check pollution levels and health recommendations. Set location-based alerts. Share data via Shortcuts or widgets. Sync with Apple Health for ongoing monitoring.
Navigation for maritime professionals. View vector charts and ENC data. Use AIS Class A or NMEA sensors for positioning. Connect via Bluetooth GPS for backup. Track vessel movement and route. Receive navigational alerts and updates.
Find EV with details on charger types, costs, and availability. Search by location, filter by connector type, and view real-time status. Share locations with others and get directions to stations.
Check current conditions and forecasts for your region with real-time updates from meteorologists. View flash forecasts three times daily, including weekend, traffic, and seasonal predictions.
The app provides tidal information for Sydney and NSW locations, including low and high tide times, sunrise, sunset, and tide heights. Users can select future dates to plan trips and access information without an internet connection.
Monitor in real-time using Apple Watch. Switch between Fahrenheit and Celsius. Record readings with ± accuracy. Track session duration and save data for later review.
Explore trails with detailed descriptions, photos, and difficulty levels. Use offline GPS navigation for route guidance. Receive real-time alerts for trail closures and weather changes. Export routes in GPX format for use with other apps.
Access real-time forecasts for recreational and coastal areas. View severe weather updates and tide information. See rain radar every 7.5 minutes and 3-day rainfall forecasts with wind barbs. Check surface pressure maps.
The app shows nearby bus stops on a map and provides real-time GPS-tracked arrival predictions for transit agencies supported by the NextBus system. It displays route paths, bus locations, and transit message alerts.
Track wind speed and direction, water temperature, and tide levels. Receive real-time weather updates and wind alerts. Access kite-specific conditions and forecast data. Sync with technology for accurate sailing insights.
Search for oil wells across 20 states and view produced oil, water, and gas data. Filter wells by location and type. Export details and track production metrics. Navigate to sites using map views.
The app digitizes points, lines, and areas of interest on a map. Its point stakeout function uses GPS to guide users to target features, while the line stakeout function displays distance to a line or area for parallel movement.
Track speed with accurate GPS measurements and view average and maximum speed per trip. Choose units and monitor distance traveled and estimated travel time. Use turn-by-turn navigation to build routes.
Check current conditions and 24-hour forecasts. View a 10-day summary. Save and manage multiple locations. Receive alerts for severe . Share data with others.
View real-time locations and service updates. Track train arrivals and departures. Check station access points and transfer options. Reroute for current service changes. Share map data with other users.
View hour-by-hour forecasts for and the next week. Receive personalized alerts for significant changes. Check local conditions and track national updates. Set custom notifications for specific events.
The app provides nautical charts for Finnish sea and freshwater areas. Users can view approximate locations, marina information, and create points of interest.
Track real-time positions of ships and yachts worldwide using AIS data. View vessel movements and identify vessels by name. Access detailed route information and historical data. Set custom alerts for specific vessels or areas.