This study aims to examine the correlation between students’ interaction with the Memrise application and vocabulary mastery among tenth-grade students at SMAN Colomadu in the 2025/2026 academic year. This research employed a quantitative correlational design involving 32 students from Class X-8 selected through purposive sampling. Data were collected using a 24-item questionnaire to measure students’ interaction with Memrise and a 37-item multiple-choice test to assess vocabulary mastery. The data were analyzed using IBM SPSS Statistics 25. Since the data were not normally distributed, Spearman’s rank-order correlation was applied to test the hypothesis. The results showed a significant positive correlation between students’ interaction with the Memrise application and vocabulary mastery (rₛ = .482, p = .005), indicating a moderate relationship. Therefore, the null hypothesis was rejected. The findings indicate that higher interaction with Memrise is associated with better vocabulary mastery and supports the potential use of mobile-assisted language learning for English vocabulary development.
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