Generally, the present invention is incorporated in a system of interconnected software, devices (e.g., hardware, viewing screens), and databases (the “system”) that receive, log and score a series of objective data over time in order to generate an numerical score (or index). The data can be almost anything, a color, a dimension, the angle between two objects, or other objective relationships that can change over time. For health issues, the data could be a skin mole, teeth color, hair color or recession, various diseases and so forth. This invention is useful for a user who wants to track one or more health issues. In addition, this invention is useful for a seller of goods and services related to the tracked health issue.