Ads displayed on mobile browsers or apps on smartphones and tablets. These can include: mobile web (which are just display ad units displayed within the mobile browser), mobile app (often larger units customized to and displayed on apps on your mobile device), and, mobile video (which allows for advertisers to run video ads on mobile devices). For more digital ad formats, see banner display adsrich mediavideo adsnative adssocial ads, and connected TV (CTV).