It consists of all in-app purchaseLifetime value (LTV) indicates the average revenue a single mobile app user brings throughout his lifetime starting from downloading the app. s and all the engagement of an app user with in-app ads. 

Lifetime value is significant for both user acquisition and app monetization because it tells app developers how quality and engaging their user base is. App developers can use LTV both to understand the quality of their ad networks they work with for user acquisition and to assess if their user base is qualified enough for monetization via in-app advertisement.