Cronometer is a nutrition tracking app that provides accurate and comprehensive nutritional data from verified sources. It offers a product called Cronometer Pro for healthcare professionals, nutritionists, dietitians, universities, and research teams. Cronometer Pro allows professionals to monitor their clients' accounts, manage their settings and nutrition data, share foods and recipes, create custom biometrics, and generate professional documentation. It also provides features such as in-app encrypted messaging, support for clients with eating disorders, and weekly live webinar Q&A access with staff.