This paper describes a project, including the design, development, and use of a mobile application (referred to as application hereafter) for learning Chinese as a second language in a bilingual primary school. The application was designed for iPod Touch Apple technology with the purpose to facilitate learning of a fundamental set of 200 Chinese characters. The project was a coordinated effort of experts, including an instructional designer, a software engineer, a Chinese language expert, and classroom teachers to develop an experimental Chinese character learning application for the primary school classroom. This paper reports how the project team explored experiences of teachers and learners in a particular context, developed understanding of teaching and learning needs for Chinese language learning, and how these inform design of the educational application. The final outcomes of the project include a Chinese character learning application and recommendations for design and use of educational applications in Chinese language teaching and other similar contexts.