Cha-Ching, the new personal finance app from Midnight Apps, is getting a rockstar debut before its official release this Friday. Each day, a new feature is highlighted, and the price increases (that’s right, I said increases). Buy it now, and you’ll save a few bucks off of the regular price, but wait ‘till Friday, and you have to pay the full amount. It looks like a great app, and the site pokes a little fun at itself, so the developers definitely have a sense of humor. I just hope they’re serious about the little piggy, because this could be a great option for those that want to digitize their wallet.