Ripped-off customers who used before – mTrip Travel Guides (Offline) Review

So, after purchasing two mtrip individual city apps for $5.99 each, I learn that a replacement app is out that requires $3.99 in-app purchase to use each of the cities I've already paid for! Apple needs to clamp down on companies that abuse the App Store (eg, frequent updates of bad apps to bury reviews (no longer "current"), adding advertising to paid apps after purchase, and this - replacing paid apps and expecting customers to pay twice! I like mtrip, but there are more ethical companies offering fine alternatives!
Review by DEJ-II on mTrip Travel Guides (Offline).