Please update! – Sudoku 101 (Free) Review

I love this app. It's one of the first apps I downloaded when I first got an iPhone way back when. However, since the new IOS there have been several bugs that make it almost impossible to play. I looked for a new Sudoku app, but none of them are as good as this one used to be. Please update!
Review by Txjwl on Sudoku 101 (Free).