Rewarded video is a mobile ad type where a user is rewarded if interacted with the ad. Rewarded video ads are used for app monetization. Most of the game ads use rewarded video ads to encourage users to watch video ads from start to end. 

Mobile game users prefer watching the video ads to deserve rewards like in-game coins or level achievement. Because users are willing to consume rewarded videos to get rewarded, eCPM rates and revenue generated from app monetization increases. To make the most out of rewarded videos, ad placements, rewards offered, and timing should  be planned carefully.