Here’s how you can block the annoying Facebook games and apps invites on iOS, Android, mobile and desktop in a few simple steps.
Step 1: Head over to ‘www.facebook.com’ from the Web browser on your phone and log into your account.
Step 2: Hit the hamburger menu button on the top right hand corner.
Step 3: Scroll down and tap ‘Account Settings’ under the ‘Help & Settings’ section.
Step 4: All configurable account settings will be displayed here. Go ahead and tap ‘Apps.’
Step 5: Now tap ‘Platform,’ and you should see an option titled ‘Game Invites and App Notifications.’ It is likely that incoming invitations are currently enabled and set to ‘Yes.’ Disable all invitations by selecting ‘No.’
With this done, you will not receive any app or game invitations from your friends in the future.
Source | redmondpie