Full Screen Full-screen ads that cover the interface of their host app or site. These ads appear between content, so they place at natural transition points or breaks, such as in between activities or game levels. Their full-coverage is what differentiates them from other ad types, like pop-up, native, and banner ads. Why prefer Interstitial ads: Larger sizes leave  larger impressions  on users Higher impression rates mean  higher click-through rates Full Screen ads mostly consists of these ad sizes. Indicating that creative size will be large. Therefore, there is more space to share your message.  Creative Size Impressions 320x480 37,449,043,850 480x320 3,328,270,323 768x1024 524,727,237 1024x768 158,021,896 720x1280 138,618,425 While when it comes to banner and video split for full screen ads, video takes the lead. Over 50% of all possible ad impressions are video ads.  Creative Type Impressions Video 22,016,059,674 Banner 19,610,650,876 Additionally, over 90% of all Full Screen ad  traffic comes from apps.  Types Impressions App 41,608,923,201 Site 17,787,349 While, when it comes to countries these are the  leading markets with the most traffic for Full Screen  ad. Country Impressions India 9,241,284,965 Indonesia 6,272,050,526 Philippines 3,907,130,477 Japan 3,253,082,857 South Korea 2,458,822,998 Ukraine 1,567,795,346 Bangladesh 1,550,722,932 Vietnam 1,500,487,479 Thailand 1,329,995,310 Malaysia 1,280,880,294 South Africa 1,018,355,166 Nigeria 981,184,264 Australia 799,043,298 Kazakhstan 671,379,040 United Arab Emirates 483,921,886 Saudi Arabia 393,945,262 Azerbaijan 390,343,624 Belarus 377,894,809 Ghana 314,179,732 Nepal 300,340,792 Global 42,973,062,771 Country Viewability CTR Nigeria 83.06% 2.58% Kazakhstan 88.88% 2.87% Kenya 73.44% 2.88% Indonesia 85.81% 3.67% Bangladesh 87.91% 6.00% Total: 82.10% 3.41% Apps were dominating when it came down to placement performance.  Apps Sites 99.58% 0.42%