Duolingo has captivated millions of people to learn different languages and has been successful in doing so. It is easy to use and digest. We would like something similar to this but for fiqh &/ aqeedah. An app (jibreel.app) has done this. However, it comes at a fiesty price. The muslim ummah would benefit immensely from a project like this, but free. Jazakumullahu khair. (Please upvote and comment if you want this app. Comment if you would fund for it!)