Abstrak
The purpose of the research was to describe the students' perceptions of the efficient use of applications in online learning in English Education Department students of University of Borneo Tarakan. This research was quantitative research. sampling technique used was purposive sampling. The number of samples was 60 respondents. The instrument of the research was a questionnaire. The results of the research showed that the use of applications in online learning in the Covid-19 pandemic were very efficient because the applications were a good way or alternative to carry out learning activities from home. The online learning applications were used by the students such as WhatsApp, Telegram, Zoom, Google Classroom, and Google Meet. The applications used were considered efficient to help the learning process. It might be able to improve the students' English skills. The applications used during online learning also facilitate the learning because of the ease of access to weak signals, not using too much internet quota, economical, good enough features to support learning. Although it supported the learning process, some students still found some difficulties in online learning using online learning applications.