Interstitial ads are referred to as ads that are visible on the full screen and appear at natural transition points within an app or website, such as between content pages or during loading screens. These types of ads capture user attention as they temporarily cover the interface until the user engages or dismisses the ad on the interface.

Use Cases of Interstitial Ads 

• Ads that come between the levels or retries of mobile games
• The ads you see in news apps between article views
• Ads that are visible to the user before or after Video Streaming
• Ads that appear between product views or checkout steps of E-commerce Apps
• Promoting new or partner apps when you install apps. 
• Event Promotion During app transitions, you see event promotion ads
• Full-screen high-impact messaging refers to Brand Awareness

Data-driven use of interstitial ads focuses on optimizing placement and timing to maximize visibility without disrupting the user experience.