How an eSIM works
An eSIM is an operator's profile written into the phone instead of a plastic card. On a trip it takes the place of your own operator's roaming: some plans are local to the country you are travelling to, and others cover a whole region and work across it. Which of the two a plan is stands in the coverage column of the packages table on that country's page.
What happens to your main SIM
You do not have to take it out. The main SIM stays in the phone and works as usual: calls and texts stay on it, and mobile internet switches to the eSIM.
The switch is made in the phone's settings: choose the eSIM profile for mobile data and turn data roaming on for that profile. Otherwise the phone keeps going online through the main SIM.
When the validity starts
On most plans it starts when the eSIM first connects to a supported network, and not on the date of purchase. The rule belongs to the plan, so check the plan's own before you install it.
That is why the profile is usually installed at home in advance: the countdown then begins once you are there. Where a plan does not start its term at the first connection, installing early does not put it off.
What separates the unlimited plans
An unlimited plan has a daily allowance at full speed and its own speed after that allowance. The internet is not switched off once the allowance is used — it keeps working more slowly.
Both values depend on the plan. Where an unlimited plan names its family, they are shown on the plan's card and come from the operator's data; where it names none, the operator does not publish them — and we do not invent them.
What already works and what is being prepared
AskeSIM is a showcase and a price comparison: the plans belong to partner operators, and we bring them into one catalogue and show the price per gigabyte.
The destination catalogue and the prices already work. Payment is in preparation — a plan cannot be bought right now.