OKmusi can be used on any mobile browser. Take an Android phone and UC browser for example, first of all, visit https://okmusi.com on the UC browser, you will see a search bar. As URL or keyword music search is supported, you can choose either to search for music. Enter the title Shape of You in the search bar and press the Download button. The search results containing the query will show up beneath the search bar. Hit the grey Download button of the music you want, and select MP4 or MP3 to download music.