The development of mobile communication applications (apps) has encouraged greater senior adoption and use. A newly emerged image type that is often embedded with texts and slogans become popular among mature aged Line users. Unlike emoticons or stickers used in mediated environment to depict certain emotions or gestures, these images, often called “info-pictures,” are not expressive in nature. The goal of this study was to explore factors that may influence sharing info-pictures within the context of uses and gratifications and socioemotional selectivity perspectives. A survey of 538 Line users aged 50 years and older was conducted, and the results showed that social interaction, relaxing entertainment, and habitual pass time positively related to info-pictures sharing intensity. Social interaction particularly affected greeting and motto types of info-pictures sharing while relaxing entertainment and expressive information sharing were associated with pleasure and information types of info-pictures sharing, respectively. The moderating effect of future time perspective was further examined. Theoretical and practical implications are also discussed.