A seat is one person's place in a Circle. Essential comes with two of them: your older adult, and one other person.
You need another seat the moment a third person wants in. A second daughter. A son two time zones away. A neighbour who checks in on Tuesdays.
What a seat is not
It is not an account. The two come apart in a way worth understanding:
Somebody can have a SeniorThrive account and no seat in your Circle. They simply do not see your loved one's information.
Removing someone's seat does not delete their account, and it does not delete anything they wrote. It ends their access to this Circle.
That distinction matters most when a family reshuffles. Nobody is erased by a billing decision.
What one costs
$10 a month each for the first three extra people, then $5 a month for anyone after that. A professional caregiver is a different seat at $15, and it does not use up a family one.
You are asked before you are charged
Anyone in the Circle can send an invitation, but if accepting it would go past what the plan covers, the person is parked rather than added.
The payer is asked, sees the new monthly total before confirming, and nothing is charged until they say yes. Nothing expires while the decision waits.
Getting a seat back
Switch someone off and they come off your next bill. Their access runs to the end of the period you already paid for, so removed is not the same day as gone. Before that date you can switch them back on and nothing will have happened at all.
The upper limit
Twelve people in a Circle. It is set far above any real household, and it exists to catch a runaway account rather than to limit a family. If you genuinely need more, ask us.