digital badge
noun [ C ] uk/ˌdɪdʒ.ɪ.təl ˈbædʒ/ us/ˌdɪdʒ.ɪ.təl ˈbædʒ/
数字徽章
an icon (= symbol or picture) or title that shows you have achieved a particular thing in a computer game, on an educational website, etc.
With the app, you earn points and digital badges by practising your target language every day. 有了这个应用程序，你可以通过每天练习目标语言来获得积分和数字徽章。