iPad Learn-to-Read Apps?

I've become increasingly disappointed in the learn-to-read/reading apps on the iPad. Maybe I'm just searching incorrectly. Maybe I'm not understanding what a reading app is really all about. Whatever the case, I feel like this is a great opportunity for greatness -- "the world's greatest learn-to-read app!" Takers?

I've had a lot of moms recommend the LeapFrog or vTech reading devices. I checked them out. They are a pretty penny for what they really are...not to mention all of the "books" you then buy. It makes me even more determined to find a whole bunch of fantastic reading apps on the iPad. No matter how long it takes!

If you have any suggestions on favorite reading apps, please, please, please head over to https://www.facebook.com/SociallyMediaMoms and share them with us. Or, if you happen to swear by one of these other eReaders for kids, share that, too. I'm new to the kindergarten world, so fire away! (And while you are there, feel free to like our page, as well!)

Thank you!