The photos you take get more attractive when you edit it. There are many photo editing apps on play store the best I found till today is snapseed by google.inc.The app has many editing tools like photo adjustment, brush, double exposure, face spotlight, lens blur, hdr and so on.The best thing I found about this app is that the quality of image saved after editing is high and it remains in good quality when you upload it on instagram or facebook.This app is simple and easy to use.