No, or, not directly. All* of the actors are using ASL, and most of the videos have English voiceovers and captions in English and Spanish. Some learning will happen, especially if one decides to focus on repeated phrases such as greetings. Teaching ASL is not our goal, but you may find it a nice side-effect of using the app.
*Hearing, non-signing actors are included in the Finger Food Cafe videos. These are deliberate casting choices and all spoken lines have subtitles.