Best program for country flags

I have tried several programs for learning the flags of all countries. Some are fun, but this is the first to clearly show nice and large flags to help the user distinguish different flags from each other. They need to be big, as some are very similar to each other, and to show the flags details. This app does that well and has many different ways to learn the flags. It is the best program for this purpose that I have seen.

ijudy about World Flags (Match'Em Up™ History & Geography), v1.0.7