English is a language that has been patented as an international language where everyone in all parts of the world can communicate with someone who has a different language using English. In the current technological era, this ability is really needed to be able to communicate digitally, such as via the internet, even in the professional world. For this reason, tools are needed for learning English such as the U-Dictionary. This research aims to determine students' learning experiences and to find out the advantages and disadvantages of using the U-Dictionary as a learning aid. This research used purposive sampling to determine participants, namely eighth-semester students of the English Language Education Department, UIN Walisongo Semarang. This research uses qualitative methods by conducting natural observations of students where the main data is obtained from interviews. Data analysis in this research includes stages of data reduction, data presentation, and conclusions. Students also experience difficulties in using U-Dictionary such as signal interference, applications that provide translations with foreign vocabulary, lots of advertisements, and so on. Apart from that, students need other tools such as the Cambridge dictionary, Duolingo, and YouTube channels.