COOSAE Apps is a digital agricultural supply chain platform that connects farmers, cooperatives, and buyers through a commodity recording system, AI-based harvest and price predictions, and real-time on-farm monitoring. This application makes it easy for farmers to report crop conditions using voice, provides complete information on grade, volume, and harvest time for buyers, and helps cooperatives manage weekly demand and supply more efficiently. By integrating data from on-farm to distribution, COOSAE Apps presents a more transparent, modern, and sustainable agricultural ecosystem for Batu City and its surroundings. This application was developed in collaboration with Brawijaya University, Coosae (Cooperative Smart Agriculture Ecosystem) and the Batu City Cooperatives, Micro Enterprises, and Trade Office, supported by the UB Globalizing Cooperation program.