100% ad free. Designed to be as minimal as possible, and requires no permissions. Has a history to view previous questions and answers. Uses the yarrow stalk method under the hood to generate the hexagrams.

Can use either the transitional reading method described by Mondo Secter or the more classical method most people are familiar with.

Source code for the app can be found here:
https://github.com/atomoton/uncomplicatedIChing