How data sharing works
Each eSIM only uses its own plan: 10 GB for an adult, 5 GB for a child, for example. The amount is chosen traveller by traveller when you order.
A traveller's limit is their plan's data allowance. Once it is reached, their connection stops; the group's other eSIMs carry on as normal.
The organiser, by choosing each person's plan before paying. During the trip, they can increase a traveller's allowance with a targeted top-up, when the plan allows it.
The traveller sees “Data used up” in their guide. The organiser is informed in the trip dashboard and can top up the eSIM in question: the top-up only applies to that eSIM. Without a top-up, the eSIM stays installed but no longer transfers data until the end of the trip.
Usage is reported by the partner network, usually with a delay of a few minutes to a few hours. When it isn't available, the trip dashboard shows “Data not available right now”, never “0 GB”. The “Refresh” button checks again.
The status of each eSIM (to install, installed, connected, data used up) and the top-ups they pay for. Never another adult's detailed usage, installation codes or contact details.
Their own usage, expiry date and installation guide. They can't see the other eSIMs or the contact details of the person who paid. For a child, only control over purchases rests with the parent: no screen claims to monitor what they look at.