Caracal app is a clinical decision support system that you can download to your smart phone. This can be of great help when it comes to determining diseases or medical conditions. The app is like a medical search engine in which you can simply input medical words—can be signs, symptoms or lab results—to be able to get the list of possible diseases that affect the patient. Interestingly, the possible diseases are arranged based on probability of each disease. The garnered results are based on several factors that the app considers. The developers envision that the Caracal app can surpass the ability of the human brain in identifying diseases and medical conditions based on the given signs and lab results.