OO Video Downloader - 동영상 다운로더 is a tools app by deepflow.dev with 10+ downloads (about 48 estimated). +9 installs in the last 7 days. Released Sep 25, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Quickly download HLS, M3U8, and MP4 videos to play offline.”