Detailed instructions on how to disconnect your iPad from your iPhone.
iPads, iPhones, and other Apple devices will sync when set up with an Apple account. This makes it easy to continue working with data across devices. If you don't want continuous data syncing, you can also disconnect your iPad from your iPhone, as described in the article below.
How to disconnect iPad from iPhone
Step 1:
You access Settings on your iPad, then tap your Apple account username at the top of the screen.
Step 2:
In the next interface, the user scrolls down and taps Sign Out to sign out of their iCloud account on the iPad.
Thus, the iPad has disconnected from the iPhone and other Apple devices.
How to unsync individual apps on iPad
Signing out of iCloud completely disconnects your app, but it's also inconvenient because it logs you out of Apple Pay and prevents access to your purchased Apple subscriptions. In this case, you can disable syncing for individual apps.
In the Settings interface on your iPad , tap your account name, then tap iCloud to adjust the settings.
Then you will see all the apps that use iCloud. To turn off syncing for any app on your iPad, simply turn off syncing for that app .
How to prevent iPad and iPhone from syncing using Handoff
Handoff allows you to transfer activity from certain apps between devices. If you don't like using this feature, you can turn it off.
In the Settings interface on your iPad , tap General , then select AirPlay & Handoff .
Now you just need to turn off Handoff .