In it you can find multiple open source solutions such as Piwik (see sheff comment), snowplow (https://github.com/snowplow/snowplow) and Graphite (http://graphite.wikidot.com/start).
Hope this helps.
We don't need to know where our users come etc, but more following certain events and patterns and how they engage with the app.
We don't need to know where our users come etc, but more following certain events and patterns and how they engage with the app.