SEAiq USA!

SEAiq USA is a full-featured marine navigation app. It automatically downloads all charts (both vector and raster) from NOAA and the US Army Corps of Engineers for regions of USA you select. ]Other features include:* Waypoints * Routes * Tracks * Night color modes * Anchor alarm * Automatic download and display of weather (wind & isobar) * Active Captain Interactive Cruising Guidebook * Chart measuring tools (EBL/VRM) * WiFi-based NMEA and AIS * Raster charts* Vector chartsContinued use of GPS running in the background can dramatically decrease battery life.