Mobile frameworks are software tools that help developers create applications for mobile devices like smartphones and tablets. They provide pre-built components and libraries, making it easier to design, develop, and maintain apps. Popular mobile frameworks include React Native, Flutter, and Ionic, each offering unique features and capabilities. These frameworks allow developers to write code once and deploy it on multiple platforms, such as iOS and Android. This cross-platform functionality saves time and resources, enabling faster app development and updates. By using mobile frameworks, developers can focus more on creating engaging user experiences rather than dealing with the complexities of different operating systems.