Osmosis is very good. The videos are helpful too. However, it's too expensive. Most of us are students. The 50% off sales are quite helpful too, because that helped me. However, if it's coming too frequently, it'll make Osmosis a joke. Please consider reviewing the subscription price. Especially as things are harder during this COVID period. Also, in the Mobile App version, it should be more flexible [I should be able to delete playlists I don't want anymore. Or delete flashcards from my queue or even empty the queue entirely] Generally, great work. Weldone.