agefox writes: UV rays can damage your skin if you don't use any sun protection products like sunscreen. This app helps you to plan your outdoor activities by giving you localized, real-time information on UVA and UVB rays. This way you can reduce your exposure to the harmful rays. Hyperpigmentation is NOT the only thing you should worry about but the potential risk of skin cancer. You can set the app to remind you to wear sunscreen periodically. Try it for free if you have iPhone, iPad and Android.