What is a pop-up ad on a cell phone game known as?

A pop-up ad in the context of a cell phone game is typically regarded as a component of digital advertising within applications, hence the classification as a "Digital App." This term encapsulates various types of advertising found within mobile applications, including games.

In-game pop-ups are designed to capture the attention of the player by interrupting their gaming experience, often promoting other games, products, or services. Since they appear directly within the app environment, the term "Digital App" aptly describes their context as they are not associated with external media forms such as broadcast TV or outdoor billboards. This makes it clear that they belong to the online advertising ecosystem that thrives on digital platforms. Other options do not effectively represent the specific nature of in-game pop-up ads, which are squarely situated in the digital landscape.