A free app for Android, by Encyte.

Stay Safe is a free, easy-to-use app that will help you determine the risk level of getting HIV from different sexual activities. It is based on the latest findings in HIV science, and it will provide you with the most accurate information on the subject. It is a comprehensive app, that contains all the information you need to know about the disease, its transmission, and how to protect yourself from it. It also gives you the opportunity to get tested for the virus, and if you are interested in doing so, the app will also help you locate the nearest government and recognized private sector test centers in Sri Lanka.