Are the two images of the same exposure? If not, its very difficult to have that accomplished automatically by any program and does need some final tweaking, manually! But I would have no idea on how to do that on a phone, since I never owned one!
Thank you for your reply. It is on an iPhone and I use it when I don't have my Canon T3i handy. I hope to be getting internet service at home soon and then will be able to upload the photos from my camera. I suppose I am still young at 43 but I can remember a time without mobile phones.