EE users will now be able to share unused data with friends and family as long as they are part of the same plan.
The new service will allow the lead member of an account to see the remaining data of all those on the plan and then move any available in 500mb increments.
The plan is being aimed at families, as well as friends and housemates, with a range of new services available to users.
Parents are able to monitor data usage while limiting the content a child accesses when browsing the web using their data.
In addition the lead person on the plan will be able to restrict data roaming abroad and stop calls to premium rate numbers.
Max Taylor, EE's marketing managing director, said: "We know it's tricky for parents to manage the right balance of letting their kids get online but also staying in control of how much and what they're accessing.
"That's why we've launched the UK's first mobile plans that allow families to gift data to anyone on their account with built-in parental controls.
"So now mum and dad can turn their data into digital pocket money and reward the kids for good behaviour, or reduce the amount they are using, all without having to spend a penny more."
The scheme is available to users on EE mobile pay monthly voice and SIM-only plans.