ABSTRACT Name : Falya Aqiela Sekardina Study Program : Computer Science Title : Usability evaluation of Quipper m-Learning application based on the perception of high school students Alongside the development of technology, the Internet has become an indispensable tool for education. M-Learning acts as an online tutoring for high school students using an application. Currently, Quipper is selected among many online tutoring. However, based on Google Play reviews, several problems were experienced by users of the application, among which are not as expected download information, unattractive interface design, and discomfort application flow. Despite this, no research specifically evaluating the quality of Quipper has been found. This paper analyses the quality of Quipper in terms of usability using interface and instructional design principle, Nielsen's Ten Usability Heuristics and Chickering & Gamson's The Seven Principles of Good Practice in Undergraduate Education. A combination of quantitative and qualitative methods are employed. Quantitative data was collected on the basis of the System Usability Scale (SUS) and the E-learning Usability Scale (EUS). Qualitative data was collected through usability testing and user interviews. Based on the results, Quipper is evaluated to have an SUS score of 72.84 (good) and an average EUS score is 5.52 that leads to positive trend. This research also presents in the total of 10 alternative design to emphasise the usability of Quipper according to the analysis of interface and instructional design principles. Keywords: Instructional Design, Interface Design, M-Learning, Quipper, Usability