The service has been set up to address the “emerging problem” of gaming addiction.
A quarter of nursery workers say they have seen a rise in the number of children biting in the past five years.
Dorothy, whose last name is unknown, told followers her mother had taken away her phone.
A quarter of parents are 'bribing' their children to put down their tablet or phone.
More than 60 per cent of professionals working with children said they were worried about under-five use of social media.
"It's called juggling the needs of everyone and it's what you get in a busy family."
Physical activity is considered far more important than screen time.