Art museums are currently discovering the power of mobile apps. This leads to a growing variety of available apps for museums and galleries. The artistic environment of these institutions necessitates an in-depth analysis of contextual factors that affect acceptance of such apps. In this paper, an iterative approach to develop well-accepted apps for interaction of visitors and artworks is presented. The first iteration includes a field study in a museum of modern arts. In the course of this study, a multiple method approach was applied to detect contextual enablers and constraints for acceptance of interactive tags that were implemented at the museum. The results of the field study indicate a need for further iterations in the development process that is conducted on the basis of early insitu and incontext user involvement.