Learning on a computer offers several advantages over a smartphone. First, the larger display allows you to see visual cues and subtitles in videos more clearly. Second, typing out translations on a physical keyboard helps reinforce muscle memory and spelling accuracy far better than tapping a touchscreen. Finally, using DuoCards on your PC allows for a dedicated study environment, free from the constant pings of social media notifications that plague mobile devices.
However, DuoCards does currently offer an official native desktop app for Windows or macOS. It is primarily a mobile app (iOS and Android) with a web version available.