In this paper I investigate the emerging trend toward connecting audio content with place in mobile audio applications for smart phones. I contextualize such apps in terms of previous mobile music practices, like those associated with the mp3 player, as well as draw connections to mobile sound art. I consider how these apps diverge from ideas such as Michael Bull’s (2007) auditory bubble by focusing attention on relationships between audio content, listening, and place. Using my own experiences with the mobile app RjDj as reference point, I argue that the moment of interactive experience with these apps tends to be the focus of attention, but that there is a need to expand considerations of engagement beyond that moment of interactivity in order to foster more involved reflection on place and relationality.