The growing success of tablets and smartphones has shifted the focus of the interactive TV industry to the introduction of second screen applications. One example is second screen companion apps that offer extra information about a television program, often synchronized with what happens on screen. In this paper, we investigate a second screen companion app, from the perspective of the viewers and producers of such apps. Based on observations and interviews with viewers and producers, and actual usage data of a companion app from Google Analytics, we present several insights and recommendations for how to design companion apps related to ease of use, timing, social interaction, attention and added value.
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