As others have mentioned, Sudoku is a rather crowded market. Still, your take on it looked interesting so I clicked over to the Play store intending to install

As others have mentioned, Sudoku is a rather crowded market. Still, your take on it looked interesting so I clicked over to the Play store intending to install it. I then saw that your app wants the "phone status and identity" privilege, which is an automatic no-go for me. Perhaps your potential customers do not want you to know what their phone number is, or the phone numbers of the people they're calling?