OpenSeaMap for iOS

OpenSeaMap is an innovative open-source application designed for maritime navigation. It provides users with access to a free worldwide nautical chart, which includes high-definition graphics and a wealth of nautical information such as lights, weather data, and harbor details. The app is built upon the OpenStreetMap database, ensuring that it is continually updated with relevant data for nautical activities. Key features include chart plotting with continuous tracking, the ability to create and manage waypoints, and an offline caching option for up to one million map tiles, allowing for seamless navigation even without a data connection.

In addition to its rich feature set, OpenSeaMap allows users to easily zoom in on charts and enter coordinates directly for precise navigation. Users can mark locations of interest and clean up chart cache data at any time. While the app is free to use, purchasing the in-app product 'PRO' supports ongoing development and new features. However, it's essential to note that users should not rely solely on OpenSeaMap for navigation decisions, as it does not provide depth information and should be used alongside official sea charts.