The Acids and Bases AR app is an interactive learning tool based on Augmented Reality (AR) technology designed to help students understand the concept of acids and bases in an easier, more engaging, and fun way. Through this app, students can scan marker images using their smartphone or tablet camera to display chemical objects such as solution bottles and pH meters in three-dimensional form, appearing directly on the device's screen. The app also provides a pH test simulation that shows the color changes of indicators when used in acidic, basic, and neutral solutions, allowing students to directly observe reactions that are typically only possible in a laboratory. Furthermore, the app features explanations of chemistry material presented in text and voice narration, covering the definitions of acids and bases, their properties, and examples of substances in everyday life. To make learning more engaging, it also features motion animations that visually demonstrate chemical processes, as well as interactive quizzes and mini-games that help students test and strengthen their understanding of the material. By combining technology and education, this app makes learning chemistry more practical, enjoyable, and up-to-date.