Mobile technologies have enormous potential to transform ordinary institutions content to electronic content. This change contributes to advance the level of performance of these institutions, whether educational or services institutions. Therefore, developing such applications using one of the well-known Software Engineering paradigms is important to support the institutions. Most of educational organizations in Oman don't provide a clear mobile application architecture that supports different organizational services. The significant purposes of these services are to provide an environment with more malleable procedures, satisfying student's needs, and achieving a quick access to information. Moreover, this paper proposes an extension tool to support students in all educational fields to send their appeal against exams results via a mobile application that integrates one of the well-known software architectures called Service-Oriented Architecture (SOA). In this paper, Service-Oriented Architecture for post result mobile application is used to integrate a set of services that have been implemented in a web server with the existing post result application.