The was developed with the emphasis on using it as conveniently as possible without putting a psychological burden on students. In short, the biggest feature of this app is that learning takes place without my knowledge in activities that do not know whether it is learning or play.

Other features are listed below.

First, it was developed as a student's individual activity to reduce the emotional burden of elementary school students that their level could be exposed in front of many people. It is easy to directly identify the help each student needs through individual learning.

Second, it was developed based on an app so that it can be used easily and conveniently anytime, anywhere. Existing analysis tools related to students' Korean literacy take an average of 30-50 minutes. On the other hand, was developed as an app-based automation program by selecting key elements related to Korean learning. Thus, while maintaining high validity and reliability, systematic analysis is possible within a short time of 5 to 10 minutes per student.

Third, it was developed to help with specific teaching and learning. It is designed with a direct teaching method, a meaning-based approach, and a pronunciation-oriented approach that are easy to approach for students who have difficulty in understanding Korean.