Let me tell you of a horrible side effect of running these iOS sales stories on Destructoid. I always see something I "need" when I'm putting them together, and I always end up buying something. This job always finds more ways to eat at my wallet.
Square Enix makes my favorite iOS games, and this week they've put just about everything they make on sale, with most of it coming in at about half price after discount. From now through January 4 you'll find that their best stuff will be marked down on the App Store. Chrono Trigger isn't on there, but just about everything else is.
There's a full list after the jump, but let me recommend a few to you. I really like the fast-paced strategy game Hills and Rivers Remain. It's like crack. Also, Chaos Rings and its sequel, Chaos Rings Omega, are solid, console-like RPGs that are hard to find fault with. There's lots of good stuff here.