What is a セッション? #
- セッション is an occasion when a user interacts with an app. Sessions are usually triggered by the opening of an app, and are reported to a mobile measurement partner (MMP). A セッション records the frequency of app use to show developers, marketers, and product managers how many times users interact within an app.
Why are sessions important? #
Sessions can be analyzed in a way that reveals how users truly interact with an app as they are related to the life-time value (LTV) of users, especially for 主にアプリ内広告（IAA） apps. This is because usually for IAA apps, sessions are positively correlated to the number of ads displayed, and in-turn the 広告収益 earned.
What are CPM N-day sessions? #
Cost per 1000 N-day sessions (CPM N-day sessions) represent the average CPM N-day sessions, and are calculated at Tenjin using the following formula:
1000 * Total Spend / Total App Opens on N-Day.
