I've been googling around and trying to figure some stuff out concerning these two games.

I know Glory Destiny and Spirit Tales are the same game, and Spirit Tales is the US version.

Does that mean that Glory Destiny is the "global" version?

What's the difference between the two?

I think I heard about the cash shop being more expensive in ST than in GD. If that's the case, can US players play Glory Destiny without fearing an IP block?

I reside in the US but obviously I don't want lag issues, but I also don't want to make my wallet cry. Which version do you recommend? Thanks in advanced!