Apple - Simplest way to prevent iTunes from automatically launching when iPhone/iPad is connected
The simplest way is to un-tick the
Automatically sync this... box* on the Summary Screen for the device in iTunes when the device is connected:
- This is per device.
Alternatively you can just remove the iTunesHelper service under your Login Items which will disable it irrelevant of the tick box state.
From the iTunes menu at the top go to iTunes>Preferences>Devices>Prevent iPods, iPhones and iPads from syncing automatically. Check the box at the bottom of that window. Click OK, quit iTunes.
That will stop iTunes from launching when you connect the phone stop automatic syncing.
If you are using Apple's iTunes on Windows 8 or Windows 10, you can disable iTunesHelper by executing the following instructions:
Right click the task bar
Select the Task Manager
Click the Startup tab
Click the iTunesHelper app
Click the Disable button
Close the Task Manager
You can also right-click the iTunesHelper app and select Disable from the context menu.