Nautical Calculator Pro vs Anchor Watcher Usage & Stats

Nautical Calculator Pro is the most complete application that solves the navigation calculations The main features are : - Calculate Route (solves 2nd navigation problem) - Calculate point on Rhumb Line (solves 1st navigation problem) - Calculate point on Great Circle (solves 1st navigation problem) - Calculate point on WGS84 (solves 1st navigation problem) - Calculate Average speed - E.T.A. calculation - Route plan, for manual waypoints planning - Waypoint route - Compisite sailing with parallel limit - Rhumb Line Parallel/Meridian intersection - Follow on same Rhumb Line route - Opposite course rendez vous - Route correction - Calculate Amplitude at sunset and sunrise and magnetic compass deviation - Compass detections - Solves Drift problem - Solves Tides problem - Solves Tidal current problem - Wind calculation with Beaufort classification - ABC Tables (azimuth, initial course, right ascension with unknow star) - Nautical almanac - Celestial Navigation with position line - Meridian transit - Celestial observation - Coastal navigation - Wheel Over - Draft survey - Converter - Anchorage - Interpolation In routes feature there is a world map: it isn't a nautical chart and is not for use as a saling chart, but as a simple general means of showing the courses through the water on earth, this map isn't for navigational purposes. No need connection for show the map; the map will be downloaded only one time. The map, for size limit, will be show for scale over 60-70 Nm. follow on facebook https://www.facebook.com/NauticalCalculator

Apple App Store
Paid
Navigation

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Anchor Watcher

Anchor Watcher is a useful application that will help you monitoring your position, see the drifting track and check the weather condition while you are enjoying your time sailing. Easy to use, you need just to choose your monitor distance and Anchor Watcher will fire an alarm when your position will be out of the range, you can have the application in background, Anchor Watcher will send you a notification, so you won’t miss it. The weather data are collected from buoys and ships around the world and can gives you very useful information about: • Wind speed and direction • Wave height, period and direction • Temperature of the air and water • Pressure • Tide • Visibility Anchor Watcher doesn't need an Internet connection in order to monitor your location, however you need it to fetch maps and the buoys and ships info, after that you fetched them you will be able to continue to use them offline. We do our best to optimize the use of the location services too keep low the battery consumption, however you have to be aware that: "Continued use of GPS running in the background can dramatically decrease battery life."