A device, system, method, and computer readable medium is provided for universal analysis of immunoassay rapid diagnostic tests. They permit different tests, from varied manufacturers, to be read even though such tests may be associated with reflection and/or emission types of signals. The device, system, method, and computer readable medium use one or more rapid diagnostic test databases, including information on products commercially available on the market and on customized rapid tests. The device, system, method, and computer readable medium identify the type of test to be analyzed by matching it with the test database(s). They capture a corresponding reflection and/or emission signal from the test, as appropriate. The device, system, method, and computer readable medium may transform the signal to an image, or vice-versa, and/or analyze the image to interpret the test result.