This article describes how to use Mobicip's parental controls to temporarily lock all your family devices at the same time.
Summary: Launch Mobicip in Parent mode on your phone and you will be able to lock your family devices from the Screentime option on the menu.
Choose the option 'Lock All Screens. It's Family Time' and set a duration for the lock.
All the devices linked to the account will be blocked from accessing the internet and any apps on the device.
Note: If you'd like to have advanced protection features including allow or block specific apps on iOS devices, please set up your child's device as a 'Supervised' device. Learn More