In an extremely fast moving mobile app ecosystem, the user acquisition cost is now surpassing the average revenue per user. At the turn of 2015, it has become extremely important for marketers and developers to push user engagement and retention to push up the ARPU. Retention, employs advanced machine learning and artificial intelligence to figure out why users are leaving and deleting your app giving you actionable insights on how to decrease user churn and increase retention. Currently retentionai is the only product in the world that can accurately identify the user who deleted app and with this head start of technological advantage, we intend to process huge amounts of data for app marketers and developers to create better mobile apps.