The bad: as stated in the title, the lite version only has the first FIVE kana (a, i, u, e, o). That's it.
The good: I like the interface. You can adjust it to practice the kana you want.
The bottom line: this is only worth getting if you're wondering what the paid version is like. Some lite versions of apps have functionality of their own, but this is only good as a preview--not worth downloading if you're looking for a free hiragana practicing app.