confused

Ive downloaded this App and its cool, but now that Im done editing my photo, I see no option or button to SAVE the edited photo (nor export or copy-paste). How do I get my photo out of Romantic Photo and into another folder to view? Also, there is no "x" red button in the GUI bar. (exit button). How do you exit this app? I managed now because I pressed "Command" - "Q" . But those are two very big setbacks in this app so far. Unless Im missing something? Can someone please tell me how to save my photos!!!

hgfghkgftjklzxcvbnm, about Romantic Photo