The adoption of mobile applications on smartphones and tablet computers has become increasingly common among businesses and service providers. It has been proven to be rapid and successful in engaging the attention of consumers, communicating new technologies, and developing processes such as ticketing systems for transport companies. This research employed agile methodology in developing an Android-based mobile ticketing system that involves assessing current processes, suggestions for improving and optimizing processes, designing software, creating, implementing, and system evaluation. The ISO 9126 Software Quality Characteristics were used as a survey questionnaire to determine the user's acceptance level on the quality of the develop system in terms of functionality, reliability, usability, efficiency, maintainability and portability where participant ratings were scaled, mean scores were measured and interpreted qualitatively using a 5-point Likert scale. Results indicate that mobile bus ticketing system (MBTS) implementation and adoption is generally acceptable using the ISO 9126 characteristics as viewed by system users and were participants in this research work. Therefore, for the adoption by the bus operator, MBTS is highly recommended for successful and more efficient transactional processes, knowledge generated is readily accessible and useful for taking decision. In the future, further development of this research can be considered and work on the incorporation of other emerging technologies. Widespread use of mobile apps allows the production of more sophisticated mobile applications and more potential to be explored. Researchers working on similar study can find operators of large bus companies operating in the northern part of the Philippines.