Hearts Compatibility with iOS 27
There is a compatibility issue with the latest iOS update which causes Hearts to crash.
Hearts has been removed from the Mac App Store until this can be fixed. There is no ETA at this time.
You should be able to play multiplayer without crashes by accessing the hearts app from the website directly instead of the app. See Online Play. If you have previously created an account with email/login name and password, you can use that sign into that account on the web to keep your stats. See Accounts. If you have not previously created an account, you will need to wait until the app is updated.