The Autism Spectrum Disorder is diagnosed from birth is why they must have early stimulation that helps them to control some characteristics, improving their attention, auditory stimulation, and their social stimulation. That is why we have the objective of designing a mobile prototype for early stimulation in children with autism. In the methodology we use Design Thinking which has five phases (Empathize, Define, Ideate, Prototype, Testing) which is responsible for analyzing and solving user needs by proposing innovative ideas, for the mobile prototype we use the Figma tool, with Tinkercad we make 3D models and for an augmented reality we use MetaClass Studio these three tools are complemented to meet our goal. Our results show the solution for each phase of our methodology with 80 people involved in the analysis and finding the main problems, which we are responsible for solving by proposing the mobile application with augmented reality being validated by experts, with a level of acceptance of 94% guaranteeing their approval of the project, The analysis of usability by those involved was very effective with a 96% by specialists in early stimulation, parents and children with autism, guaranteeing a satisfactory, efficient and easy to learn the application. Finally, the project was continuously improved with an analysis of the traditional early stimulation with the mobile application with augmented reality, complementing an optimisation in its use. Keywords—Autism; design thinking; figma; metaclass studio; tinkercad