I used to love this app – Big Bad Sudoku Book Review

The newest update has ruined this game for me. I can't seem to turn off the new defaults and it is horrible. Completely unplayable. Every blank square populates with ALL NUMBERS, including the ones that are impossible in that square. In addition the yellow highlight on rows and blocks is irritating and unnecessary. Please fix this. This is unplayable.
Review by Scott Stewart on Big Bad Sudoku Book.