Pop-up pitches are a type of advertising that involves short, targeted messages that appear on a user's screen. They are often used to promote products or services, and can be used in a variety of digital formats. The term 'pop-up pitches' is derived from the three-letter acronym ADS, which stands for 'Advertising Display System.' This system is used to display ADS on websites, mobile apps, and other digital platforms. Pop-up pitches are designed to capture the attention of users and encourage them to take action.