AirScale is a weight management application designed to work with the "AirScale Bluetooth smart body fat scale". This application can measure and analyze 13 different components of the human body, including body weight, BMI index, fat percentage, water percentage, muscle percentage, bone weight, visceral fat, basal metabolic rate, etc. The testing data is recorded on the server-side, and users can access their testing records at any time. The AirScale weight management application can automatically generate users weight, fat percentage, and muscle percentage trend charts based on the measured data. The trend charts come in two different display modes, weekly and monthly. The trend charts can help users to understand the changes in their body weight, fat percentage, and muscle percentage quickly and intuitively, providing assistance in weight management. The AirScale weight management application supports multi-user mode under a single account, allowing a family to manage multiple users measurement records using one account.