Interstitial ads are ads that cover the entire graphical interface of an application or a website and can be either interactive or static in nature. Therefore, these ads can come in different formats, such as text, video, rich media, or static images.
Interstitial ads are typically placed in transition points when navigating on the web or while using a mobile application. A transition point could be an advertisement pause while playing a mobile game or leaving one webpage for another one. When the interstitial ad pops up, the user has the possibility to watch the ad till the end, close the ad and resume his/her activity, or click on the ad to be redirected to the advertiser’s website.
These ads can also pop up following the user interacting (clicking) on a banner advertisement for example. Down the line, the interstitial ad’s main differentiator from other forms of advertisements is that it covers the whole interface of the app or website.