Wondering why Snapchat felt compelled to redesign its app, besides the need to compete with Facebook? It should be clearer after today. The Daily Beast has obtained Snap data showing that the company has had a difficult time getting users to try features outside of the core chat service. Snap Maps location sharing had over 30 million users when it premiered in June, for example, but that dropped to 19 million users (11 percent of the user base) by September. And despite Snap’s eagerness to push Discover shows, only 21 percent of Snapchat users (a still-sizeable 38 million) visit the section daily.