%L eprintsunpak10276 %D 2025 %T THE USE OF “HELLO ENGLISH APPLICATION” ON STUDENT’S VOCABULARY ENRICHMENT %X The purpose of this study was to determine whether the Hello English application has an effect on enriching students' vocabulary at seventh-grade of SMPN 2 MEGAMENDUNG. This research was conducted with quantitative approach and quasi-experimental method. The sample was 60 students which divided into 30 students from 7-A as experimental group and 7-C as control group. The classes were selected through random sampling. The researcher collecting the data by conducting pre-test, treatment, and post-test. Mean of post-test for experimental group was 67.4 while the control group was 89.7. The t-count value is higher than the t-table value. (6.876 > 1.669). This means that the alternative hypothesis (Ha) is accepted. Therefore, there is an influence on the vocabulary on first grade after being taught using both applications. Keyword: Hello English Application, Vocabulary %A Pradinie Erlyn %I Universitas Pakuan