Mobile app retention is one of the key factors in an app's continued success. Building and sustaining your app's user-base requires a strategic combination of organic and paid user acquisition tactics. The presentation describes how to successfully build a loyal user-base for your app

35. Successful developers get better users for less money. (Focus
on Organic Users)
Entice users who pay for premium upgrades or in-app
purchases.
Tweak your user acquisition efforts to both reduce costs and
improve (LTV).
Positive ROI (Return On Investment) is the real name of the
game.
Segmentation and targeting is your safest bet to reach positive
ROI.