Advancements in technology have equipped poultry farmers with innovative tools to improve production efficiency. One unique innovation is the development of Personal Digital Assistants (PDAs) for feed formulation, enabling farmers to meet the nutritional needs of layer chickens while minimizing costs. This paper details the design and development of an Android-based mobile application called Penny-wise Layer Feed Formulation PDA. The primary objective is to create a user-friendly platform that aids farmers in formulating optimal feeds efficiently. This research contributes uniquely to existing technology by offering a tailored solution designed explicitly for layer feed formulation, distinguishing it from generic agricultural applications. The study employed a developmental research methodology, specifically the Rapid Application Development (RAD) Model, to design and develop the application. Furthermore, descriptive research methods were used to evaluate the application's effectiveness based on the ISO/IEC 25010:2011 software quality standards. Tools such as Android Studio, Java, and SQLite were utilized during the development process. Evaluation results demonstrate that the mobile application is very much functional, usable, reliable, and maintainable. It received high ratings, with an average weighted mean of 4.15 and above, indicating that the application is highly effective and practical. These favorable assessments suggest that the application can significantly assist poultry farmers in optimizing feed formulations, thereby enhancing production outcomes and reducing costs. The study concludes that the Penny- wise Layer Feed Formulation PDA is an effective and beneficial tool for poultry farmers, providing substantial advantages in terms of usability and reliability. This research emphasizes the critical role of integrating technology into agricultural practices to boost productivity and efficiency. By leveraging such innovative tools, poultry farmers can achieve better resource management and production efficiency, contributing to sustainable farming practices. This application is highly recommended due to its potential to transform feed formulation processes in the poultry industry.

Keywords: Poultry Farmers, Feed Formulation, Layer Chickens, Personal Digital Assistant (PDA), Mobile application, ISO/IEC 25010:2011