I assume it is freemium based on their jewel puzzle model haha! Dev: kindly show them some gameplay video to prove I am right and do confirm that it's a freemium. Hahaha
More than 250 Mutants in 50 cities on Earth + Spatial Destinations + Aquatic Destinations In each city a lot of missions...
The game is now released! Try it, it's free! https://itunes.apple.com/us/app/x-mutant-puzzle-rpg-puzzle/id715455176?ls=1&mt=8