The dietary habits of young adults, particularly those living away from home, are often poor due to lifestyle changes and environmental influences. Studies show the importance of meal routines and home food preparation in promoting healthier diets, but students frequently consume unhealthy foods independently. Adolescents face barriers to healthy eating, worsened by food environments that limit availability and affordability. To address this, KosZi, a mobile application, promotes balanced eating habits among young adults through personalized meal scheduling and nutrient monitoring. It also recommends affordable eateries and fosters a community for sharing reviews. Developed using Agile Scrum methodology, KosZi emphasizes continuous improvement based on user feedback. Currently a prototype, KosZi aims to evolve into a fully functional app for Indonesian students. Future enhancements include encouraging local UMKM to meet healthy food standards and integrating QRIS for payments and ride-hailing for food delivery.