What the price depends on
With the London Pass, only the number of days sets the price. Two or five attractions in a day: the price stays the same. There is no premium or plus level: for each option from 1 to 10 days there is an adult price and a child price, nothing more.
Go City’s Explorer Pass charges differently. There the number of attractions sets the price, from 2 to 7, and you have 30 days from your first visit. Both passes arrive digitally in the Go City app, and both can be cancelled for a full refund within 90 days if you bought directly, as long as they are not activated. With the right code you save 5% on both.