The application uses a set of random Chinese characters to correspond with 26 letters in English alphabet. The company claims this will "add mystery to your writing".
At least they are smart enough to put up this disclaimer at bottom of the page:
"The translation provided by Chinese Alphabet is intended for personal use and entertainment only. Not recommended for tattoo artists to use this to tattoo their clients, iPhone app developers to localize Chinese apps, CIA agents to communicate national secrets, or security professionals to encrypt passwords."