How can I change the language back to English on AppsGoneFree App?

While on the "Apps Gone Free" app I have downloaded on my iPhone, I accidentally hit something that changed the language from English to another language and I can't tell how to change it back. I can't find anything I hit to be able to go back to. I don't want to repay to download it again, so if any one has any idea I'd appreciate it. I even tried finding out how from the googled site, which I think took me to iTunes.