C-Map by Jeppesen’s Plan2Nav app plays nicely with Apple and Android devices and provides worldwide cartography coverage. Plan2Nav allows users to easily create and edit waypoints and routes, record their GPS tracks, and view data including speed over ground, course over ground, and estimated arrival time at the next beach bar. While Plan2Nav comes with worldwide background charts, in-app purchases allow users to upgrade to C-Map’s full cartography, which unlocks other features, including the app’s global weather forecasts. Choose the type of weather information you want (e.g., wind, wave, humidity or temperature data) and tap the download button, and — provided that Internet access exists — the app will selectively retrieve only the desired data, keeping download size and data charges to a minimum. Weather information is overlaid atop cartography, and users can watch animated forecasts. Additionally, users who upgrade to C-Map’s paid cartography can access C-Map’s Port Database as well as high-resolution aerial photographs.