Compatibility for IOS 11 – Big Bad Sudoku Book Review

Dear Developer, Writing this review — not sure how else to advise you — to update the app so it becomes compatible for IOS 11. I need my daily dose of Sudoku to sharpen my mind and I would rather not download some other app. Which clearly states how much I love your app! ? But please update it soon! Thanks! Mike
Review by itMIKEbeyou on Big Bad Sudoku Book.