Both are creepy ghost stories. Both are based on actual places that exist (Gonjiam Psychiatric Hospital and Taichung Tunghai University) and a form of live streaming is used on both. (Gonjiam is more full stream, whereas Bridge is more clips of streaming)
both of these are based on urban legends, the difference is that urban horror tells us a different story each episode while the bridge curse tells a story of urban legends in one plot
Both productions depict urban legends. The difference is that Goedam has a chapter for each story while The Bridge Curse presents the urban legends in a single plot.