UVIMate is the smartest way to have a safe time outdoors, stay sunburn free and track Ultraviolet Radiation (UV) all around the globe.
The Android version is great and works on Android Wear
The iOS version doesn't provide UV Index Forecast. Lack of localization.
Great start for a solo developer, UV Index API should be considered to become Open Source to liverage comunity effort. Garmin and Fitbit Ionic apps are also would be the great extras.