Duolingo is a free language-learning website (and mobile app) with over 55 different language courses available
This tag should only be used if the question's primary focus includes Duolingo.
If the question uses a service other than Duolingo, use the appropriate tag for that service instead, such as anki for Anki. However, you may use this tag with other tags used for different services as long they are part of the primary focus of the question.
