Im trying to find a good chinese language learning app.... ive downloading two and wasted my money...I need a refresher, having minored in it in college years ago....but everything seems so rudimentary, simple and unhelpful...there are some good interfaces but i have yet to find a good complete program...i would spend 20 bucks or more if i found something good. Is there a site that reviews these? or aids in searches? help! bangzhu wo!