Card City Nights 2 is out since this article.
I really enjoyed CCN, but I also got frustrated with it. Very quickly, all the fights became incredibly easy - I think by the time I faced the final-final boss, I had only lost two matches in my entire career. Simply build a deck with nearly all attack (red sword) cards and you'll cruise. Until you get to the boss, who is extremely difficult.
However, I really loved the CCN idea, design, artwork, and setting. Just brilliant.
A collectible card game without IAP - that alone is awesome