Developing applications targeting mobile devices is a complex task involving numerous options, technologies
and trade-o s, much so due to the proliferation and fragmentation of devices and platforms. As a result of
this, cross-platform app development has enjoyed the attention of practitioners and academia for the previous
decade. Throughout this review, we assess the academic body of knowledge and report on the state of research
on the eld. We do so with a particular emphasis on core concepts, including those of user experience, device
features, performance, and security. Our ndings illustrate that the state of research demand for empirical
veri cation of an array of unbacked claims, and that a particular focus on qualitative user-oriented research
is essential. Through our outlined taxonomy and state of research overview, we identify research gaps and
challenges, and provide numerous suggestions for further researc
