Google In-App Ads, also known as Google Ads in-app, are advertisements delivered through Google's advertising platform, Google Ads, within mobile applications. These ads are specifically tailored to target users while they are actively engaged with various mobile apps on their devices. Google In-App ads come in different formats such as banners, interstitials, native ads, or video ads, providing advertisers with a powerful way to reach mobile audiences and promote their offerings within the app environment.