Problems – World Clock – Time Zones Review

What is the difference between this version (with the in-app purchases) and the Gold version? They sure seem the same. Problem is, I had already purchased the Gold version, which doesn’t work with iOS 11, so had to install this version and AGAIN pay for the same features. I think something is very wrong here. Anyone else see this?
Review by RHDP23 on World Clock – Time Zones.