HealthWatch is a free software. HealthWatch can calculate growth percentiles for infants, children and adolescents (2 to 20 years); blood pressure percentiles for children (under 17); and BMI for children and adults. This program uses data of child growth chart and baby growth chart from CDC to calculate growth percentiles, and the "Blood Pressure Tables for Children and Adolescents" from National Heart, Lung, and Blood Institute to calculate Blood pressure percentiles for children.

HealthWatch can also evaluate underweight and over weight, identify metabolic syndrome and calculate risk for having a heart attack using the algorithms from Adult Treatment Panel III. Tools for importing and exporting mass data from other systems are available in HealthWatch Pro.