The fortune-telling assistant app uses the Guijangsul (the art of divination) and Yukim (the six imitations) passed down by the Gucheon Hyeonnyeo to help you know the purpose of your visit before the fortune-teller even tells you. It also provides audible answers to voice-based questions using Yukim.
It also uses Daejeongsu (the hexagrams) to tell your fortune for the day. It includes the entire contents of Jeongjeonyeokhae (the book of Jeongjeonyeokhae) by Dogye Park Jae-wan.
It also provides biorhythm and plum blossom fortune-telling. In addition to the above, you can also use plum blossom fortune-telling to determine your daily fortune and new number.