The chapter discusses the integration of technology, particularly mobile devices and smartphones, into educational settings. It highlights that students spend significant time on their phones, often for social media or gaming, which has led to the consideration of using these devices as tools for academic activities. The use of mobile applications can enhance students' cognitive skills, improve collaboration and communication between students and teachers, and strengthen the teaching and learning process. The introduction focuses on the App Inventor application, which enables students to create their own apps for smartphones. This tool is seen as a means to help students develop problem-solving and decision-making skills, thereby reinforcing their learning. The chapter also includes references to relevant literature on mobile learning and the development of Android applications using App Inventor.The chapter discusses the integration of technology, particularly mobile devices and smartphones, into educational settings. It highlights that students spend significant time on their phones, often for social media or gaming, which has led to the consideration of using these devices as tools for academic activities. The use of mobile applications can enhance students' cognitive skills, improve collaboration and communication between students and teachers, and strengthen the teaching and learning process. The introduction focuses on the App Inventor application, which enables students to create their own apps for smartphones. This tool is seen as a means to help students develop problem-solving and decision-making skills, thereby reinforcing their learning. The chapter also includes references to relevant literature on mobile learning and the development of Android applications using App Inventor.