If you had Game Center turned off then it would turn back on each time you restarted the App.
What's New in v7.01 kwscnmrk
1) You can now lock the Training button and the Scoring On/Off button from the User Interface section of the Settings screen to prevent fat fingers accidentally pressing them.
Bug Fixes in 7.01
1) Some data in the previous version caused the App Store to incorrectly state that the App contains English, French, German, Italian, Japanese and Spanish language support when in fact it only contains English.
2) If you played Spider or Poker Squares in landscape orientation then the empty card stacks overlapped each other. Now they look much better.
3) In Cribbage Squares, a Flush was only scored when all five cards were the same suit for 5 points whereas the correct rules should score 4 points if the four cards excluding the Starter are the same suit. This has been corrected.