<![CDATA[The rapid development of applications has resulted in mobile application developers competing to create applications that are useful for the wider community, as is the case with the Zenly application. Through this application, every user can easily meet in real life, track the current whereabouts of someone with their consent, find the whereabouts of friends or relatives who are lost in the crowd, and follow the progress of the closest people. This research aims to determine the level of usability of the Zenly application and provide suggestions for improvement. The research stages followed a sequence of methods, including usability testing, preparation, execution, and analysis, time efficiency, and SEQ (Single Ease Question). Data was obtained on the average task time, success level, completion rate, and the lowest time efficiency, with task 1 taking 14,357 seconds, 38% success rate, two partial completions, and 87.5% completion rate. Based on the testing of these aspects and the results of the SUS (System Usability Testing) value of 71 Grade C (Good), the level of usability of the Zenly application is quite good but improvements need to be made, especially for task 1.]]>
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