I'm working on updating my Chinese Flashcards app. Its new name is Chinese Flashcards - set 1.
Hopefully it is available in early January due to the holiday break of iTune Connect ( Dec. 21 - 28).
The 200 unique characters will be presented by sub-unit, category. And a special Idiom module is also introduced. Some other features will be added too.
Please drop me a line if you would like to install it with a promotional code before it can be downloaded from App Store.
Here is a new screenshot: