App for iphone that lets me put two pics side by side WITHOUT THE SQUARE SHAPE?

I can't find a single app that lets you put two pics together in one without the square shape. I basically just want to put it together but still see both of thrm entirely. For example, if i have two square shaped pictures and i put them together, i want it to be rectangular. You know what i'm talking about?

Well… I found this app, its like a montage thing for pics, and you can put them anyway you like, its call Montage(lite). Hope this help!