Great Game--Fun way to boost brain power – World Flags (Match'Em Up™ History & Geography) Review

I've been playing World Flags for a long time, perhaps 2 years. Even though there are a lot in the game, I would like you to upgrade by adding more countries, capitals and flags. I'd be willing to pay for that upgrade.
Review by Userpitgwfj on World Flags (Match'Em Up™ History & Geography).