We have already sent the first update, numbered 1.0.1, to the AppStore. This update will fix some issues with shadow casting over some snowy elements, will show lighter lines in already active upgrades, so it is easier for you to spot which ones you are using, and we have fixed some text boxes which didn't show the texts as they should.
We want to thank Sam Mitchell (see his review at BritGaming) for his review and feedback, specially regarding texts in the english translation.