From my research, AnKing is an Anki deck that is an overhaul of Zanki and includes other decks that were made by US MD students. The Anking deck uses multiple resources (Sketchy, Constanzo, Pathoma, BnB, First Aid). Typically students will download the Anking deck, and then suspend all the cards in the deck. Then as your med school covers a certain topic, you un-suspend relevant cards so that you can learn the info. Check out r/medicalschoolanki for more info.