How do I turn off Apple app Sharing?
Tap People, select people in the list, review the information shared with people, then decide which information you want to stop sharing with selected people. Tap Information, select apps in the list, review the information shared with people, then decide which information you want to stop sharing with selected people.
Can you turn off the share button on iPhone?
Go to Settings > Messages. Tap Shared with You. Disable Automatic Sharing if you want to turn off the feature entirely. If you wish to turn the feature off for a specific app, toggle the switch off beside the relevant app.