Language has long been an indispensable tool for society, as it allows communication and interaction between people. The learning of sign language is a very big problem, either because access to information is scarce, there are no interpreters of this language or because the learning of this language is not taught from an early age. This document shows the development of a mobile application with augmented reality to improve the learning process of sign language following the Mobile-D methodology, taking as indicators the level of learning, time required for learning and information level of Peruvian Sign Language (PSL), for which results were obtained from a sample of 30 users as a control group and an experimental group. It was based on a performance percentage of 23%, subsequently improving the student’s learning of sign language by 65%. It was determined that, with the implementation of the mobile application with augmented reality was achieved to reduce the time required for the level of learning of the PSL, starting from an average time of 132.67 hours after an average time of 44,633. Finally, it was possible to improve the level of information of the PSL, starting from an average score of 2,2667 and then an average score of 9,067. Allowing to conclude that the mobile application with augmented reality to significantly improve the process of learning sign language.