WorldTides provides 7 day tide predictions everywhere in the world! Data sources include the UKHO, NOAA, and *NEW* Satellite Predictions. Now supports iPhoneX, iOS 11, and AppleWatch 4.0 Tide predictions are based on historical measurements taken at various locations. These measurements are used to derive formulas that are used to predict future tides. WorldTides contains over 5000 locations including 3700 built-in locations, 600 which require an internet connection, and 700 that show up in a web browser because of specific country licensing limitations. Features Moon Phase, Sunrise, Sunset, built-in offline map, GPS location detection, favorite locations, feet/meter support, and manual time adjustments. Supported Locations England, United States, Canada, France, Hong Kong, Ireland, Australia, New Zealand, United States, Germany, Belgium, Netherlands, Portugal, Japan, Malaysia, and much of South Africa, Central America, South America, and the Pacific Islands.