PICOOC is an Android application developed by picooc that works with the PICOOC Smart Body Fat Scale to provide users with advanced body composition analysis. With the help of a high-precision weight sensor and fat-measuring microchip, the app can immediately synchronize 13 important body measurements such as weight, body fat percentage, and visceral fat index. The app also provides data mining and analysis to offer recommendations and services for better body understanding. PICOOC has several features including body measurement interpretation, historical measurement data, trend records, profound analysis, and body circumference records. Additionally, the app has a baby growth record and can be used by unlimited users. PICOOC provides colored prompts for better understanding of physical conditions and the clear trend chart shows changes in main body indicators in each time period. The app is secure and compliant with the General Data Protection Regulation (GDPR).