What is this IPhone Photo Editor App?

You can add a crescent and full moon to your pictures, and often times the pictures have a thick white boarder (I'm not sure if this is a different app or not)

Can anybody tell me what either this app or these apps are? And are they free?
And can anybody suggest any others that are either similar or very good, and free as well?

Hi
I would like to recommend these apps. They are useful.
-Path on
-Frametastic
-Facetune
-Handy Photo
-FxCamera
-Retromatic
-Photoshop Touch
-Pic Stitch
-AfterLight
-A Beautiful Mess
-Pic Collage