Technology in education has a pivotal role in language learning in this era of globalization. This study aims to determine the impact of mobile spelling checker on academic writing among preuniversity students of a college in Malaysia. Two objectives are formed. The primary objective is to evaluate the result of the mobile spelling checker on academic writing produced by Malaysian pre-university students. Additionally, another objective is to investigate their perceptions regarding the mobile spelling checker utilised. The quantitative research approach was used. A survey questionnaire was employed to explore their perceptions and satisfaction about the spelling checker used. Cluster random sampling was employed. The samples consisted of 99 preuniversity students. The results provide light on the proper usage of mobile spelling checker for academic writing. The mobile spelling checker receives many favourable responses. The research concludes that the mobile spelling checker can meet the diverse demands of pre-university students in addition to the linguistic requirements of core courses and industry.