As part of a large-scale digitization strategy, the development of a mobile application is a natural choice. Our experience and specialization in the museum world has taught us to understand the specificities of developing an application for the museum and mediation world. For example, we know how to establish development strategies according to the longevity of the application (depending on the duration of the exhibition), or its adaptive design (reponsive design), if one chooses to develop on a park of equipment proposed by the visited place or rely on the visitor’s smartphone. We also advise you on the type of application to choose: web application, native application or hybrid (web app encapsulated in a native application). The choice is wide and adapts to the targeted audiences, the cost and the future of the application.