https://www.cnbc.com/2018/02/14/snap-gives-creators-access-to-audience-data-for-the-first-time.html

Snap said Wednesday it will for the first time give influencers the kind of data on their audiences that they receive from other large social media platforms.

Creators with large audiences on Snapchat — referred to as "Official Story" account holders — now have access to data giving them a deeper understanding of their audience. That data includes total Story views, daily reach and engagement metrics, time spent viewing Stories and demographic information.