Personal finance managers have a long history on pocket-sized devices, so it’s no surprise that there are already 15 different finance applications for the iPhone and iPod touch. Of course, they range from the simple and beautifully designed to the complex and frustrating, so this review covers all of them; skip ahead to Balance, Pennies, and SplashMoney to see the cream of the crop. Accountr ($1) by Jeff Hale is a simple money management application…