Same happened to me! Game wouldn’t open after the crash, so I deleted app and reinstalled. Thought I had lost everything when it made me make a new sim, but then it said “Load from Cloud” and my game progress was there! Unfortunately when I loaded from the cloud the game crashed again and I still can’t get in.
Player ID 1002956074183. My experience appears the same as everyone who has commented. Game was fine after the update, even this morning, problem only started 2-3 hours ago. 3 of my sims were working (Doctor, DJ, Lawyer) one was completing a friendship story.
I also don't think it is just Apple products effected as I am playing on a Samsung s7.