Can Apple SIM cards be freely purchased, or are they tied to having an address in one of the thirteen countries where they are sold? I noticed an article on Mac Rumors that headlines “Truphone's Apple SIM Data Plans for iPad Will Be Available to Buy in Over 30 Countries Later This Year”. As I understand, data plans for an Apple SIM card can be purchased in other countries besides the 13 where Apple sells the cards. It sounds like it might be useful to have a card around, can I buy one when visiting one of the 13 countries? How much does Apple charge for the card?
Apple Support lists the countries where an Apple SIM card can be bought:
If your iPad didn't come with an Apple SIM card, you can buy an Apple SIM kit at an Apple Retail Store in the United States, the United Kingdom, Australia, Canada, France, Germany, Italy, Japan, Netherlands, Spain, Sweden, Switzerland, or Turkey.