Photo filters seem to be applied when saving image to phone. The filter-applied images are in my photo gallery. But when I import the image to certain photo apps (Snapseed/Camera+/Diptic/ Superimpose or upload automatically to my Dropbox photo storage, the IOS 7 photo filter is stripped off. I'm left with just a raw image as if no filter has been applied. I'm using an iPhone 5. Am I doing something wrong? If so, how do I get the filters to stay put? Cheers.