Thanks! The looping is just in place right now to let you find more cards and synergies, and is absolutely not how the game will work. The complete game will have 3 full levels with a boss at the end of each.
Unfortunately I do not plan to release for mobile - initially it will be a PC-only release. If through some miracle it sells well enough I will consider console ports, but it wasn't designed with mobile in mind from the start, and there are so many pieces that would have to be completely redone to accommodate that.