iPad, iPhone, and iPod touch: Go to Settings > General > AirPlay & Handoff. Mac: Choose Apple menu > System Preferences, click General, then deselect “Allow Handoff between this Mac and your iCloud devices.”
How do I stop sharing across Apple devices?
If you have an Apple Watch and shared your Activity rings with someone, you can choose to stop sharing. On iPhone, go to the Activity app , then tap Sharing. Tap a person you share with, click their name, then select either Remove Friend or Hide my Activity.
How do I stop sharing between devices with the same Apple ID?
Part 1. Tap your Apple/iCloud account on the top to enter the Apple ID interface. Step 2Scroll down to locate the iPhone you don’t want to sync data to it any longer. Tap on it to enter the Device Info. Here you can select Remove from account to unlink this iPhone with same Apple ID.
How do I stop Apple devices syncing apps with each other?
On your iPad/iPhone, go to Settings app → Tap on your name and picture shown on the top (Apple ID, iCloud, iTunes & App Store) → iCloud and under Apps Using iCloud section, turn-off the switch in front of all the apps for which you do not wish to sync data.