Due to the continuous improvement of information and communication technology, the fourth industrial revolution will occur where the convergence of social, economy, and etc. will occur. In the fourth industrial revolution, many jobs are supposed to be replace by machine and AI, new types of industries will be emerged. In order to deal with the industrial change, the creative person who is able to combine different domain knowledge is required. For that, a person has to develop abilities and learn knowledge in various fields. According to the theory of multiple intelligence, an intelligence is composed of eight criteria. Since the IQ test focuses linguistic, mathematical, and logical intelligence, the improvement of multiple intelligences is limited. For balanced intelligence improvement, weak intelligence should be further improved. In this paper, we propose the smart device application to efficiently improve the weak intelligence. We conducted multiple intelligence test for elementary school student and determined two weak intelligences. Students learned through smart device application, and we confirmed that the test results improve.