COSMIC SIZES

This study empirically evaluates the functionality coverage of 18 mobile applications (apps) for Postnatal care including a recently developed app in Morocco ‘Mamma&Baby’. This evaluation is based on a comparison ofthe COSMIC _ISO 19761 functional size of these apps with the score obtained in a previous evaluation based on functionsextraction through a quality assessment questionnaire. This comparison allows to discuss the relationship between the functional size of the 18 apps, their users' ratings in the Play Store as well as the number of downloads. While for most of the assessed apps, there is only a small shift between the rankings of the two evaluations, for some apps, the shift is huge due to the number of features added and not covered by the score previously obtained. This study illustrates the use of COSMIC as an effective method for corrective or evolutionary updates since it takes into account all the functions and features of postnatal apps. For the 'Mamma&Baby' app, efforts are required to boost the number of downloads, optimize its visibility, and attract the highest number of users.