A free program for Android, by Comfable Inc.

QSun – Vitamin D UV Index Sun Exposure Tracker is an android app that helps you keep on top of your vitamin D and ultraviolet exposure. The app also helps you find the current UV index, and get personalized sun safety tips.

QSun is the perfect sun safety advisor for people of all ages and skin types.

QSun is also a great tool for people with fair skin, people who are going to be outside for a long time, and people who are going to be in a sunny location.