Design and User Experience Evaluation of Bersii Android-based Mobile Application User Interface

The user interface has a substantial and influential role because it becomes direct liaison between the application system its users shapes each user's perception of Bersii application. is created to reduce single-use plastic waste in Indonesia build increase public awareness importance protecting environment. mobile features such as product refills use waste. This paper designs (UI) for buying refill products. design results will be tested using usability User Experience (UX). test uses System Usability Scale (SUS), UX Questionnaire (UEQ). testing obtained score 79, which was included category “good". In aspect UEQ test, following scores: attractiveness 2,11, perspicuity 1,71, efficiency 1,98, dependability 1,89, stimulation 2,01, novelty 1,45. Overall, were "good”.