App usage refers to how often and in what ways people interact with applications on their devices, such as smartphones and tablets. This includes activities like browsing social media, playing games, or using productivity tools. Understanding app usage helps developers improve user experience and create more engaging content. Factors influencing app usage include user demographics, device type, and the purpose of the app. For instance, younger users may prefer social media apps like Instagram or TikTok, while professionals might lean towards productivity apps like Microsoft Office or Trello. Tracking these patterns can inform marketing strategies and app development.