Good communication is essential for good healthcare. In maternity care, inadequate communication may contribute to poorer outcomes in pregnancy. A large number of Syrian, Arabic-speaking immigrants arrived in Sweden in 2015-2016. A trans-disciplinary team acted as intermediaries between midwives and a technical company to develop a Swedish-Arabic communication app for use in antenatal care. An earlier study describes the creation of the content and the development of the prototype. This paper describes the next phase of the study, i.e., testing the prototype, refining the structure and content, and development of the next version. A user-centred approach with a norm critical perspective was applied. Workshops and observations were performed for interaction between the midwives and the research group, facilitating development from a user perspective. A final version of the app was developed. Future plans are to evaluate the app and produce a Swedish-English version.