The short answer is that they are two totally different things. SESSIONS are player tune-in’s where the user stays connected for a minimum of 1 continuous listening minute or longer.

Impressions are counted when an ad plays to members of the listening audience and they are only counted when the ad begins to play.  Therefore impressions delivered can vary greatly from sessions.

For example if a user tunes into a radio station and receives a gateway ad, but does not listen for a minimum of 1 minute after the stream connects, the gateway impression is counted, but session is not.

Should you have any questions, or need deeper analysis of a specific situation, just open a ticket with our Support staff by clicking Submit a ticket at the top of the screen.