I am using in-app purchases and not subscriptions.
I did see those posts before I posted this thread, but couldn't get them to work and didn't think it would return the currency.
When I log sk.price it just logs the price but doesn't tell you what currency it is.
In the past with GooglePlayBilling v3 I used to be able to get it like:
Dim value As String = sk.toString
value = value.SubString(11)
Dim parser As JSONParser
parser.Initialize(value)
Dim root As Map = parser.NextObject
Dim price_currency_code As String = root.Get("price_currency_code")
But sk.toString doesn't exist anymore.
I can't seem to work it out.