Interactions among contents contain user-gener- ated content (UGC), content personalization, content rating and commenting, and content sharing features. In relation to UGC, research has shown that mobile apps tend to focus on sharing content in the form of photos and videos rather than text. For example, both the UNIQLOOKS app (Figure 5) and
Avon’s Send A Kiss app allow users to take photos of themselves–—either their outfits or lips–—and share
them with social networks. Dove’s Body Language Messenger app uses user-generated text, but the text is highly innovative due to the fact that the letters provided by Dove are shaped by bodies