The purpose of this research is to find out how teachers and students perceive the development of learning media based on Android in the matter of definition sub-chapter number patterns, square number patterns, rectangular number patterns and triangular number patterns for class VIII junior high school students. In this study used a qualitative descriptive method. And on the results of the research obtained by the teacher's perception in the form of a value proportion 1) on the Basic Competency aspect of 60% in the appropriate category; 2) material aspects of 79% very feasible category; 3) the display aspect is 86% very decent category; 4) the language aspect obtains a value proportion of 88.5% in the very decent category. In addition, the perceived students obtained in the form of the proportion of value 1) on the material aspect of 76% very feasible category; 2) the display aspect is 77% very decent category; 3) the language aspect obtains a value proportion of 75% in the proper category. So that from the results of teacher and student perceptions it can be stated that the development of Android-based learning media is very feasible to be implemented in number pattern learning activities.