I've been having a ball tinkering with the photography app VSCOcam. I think it makes my pictures that much better. VSCo's cam fantastic editing options and filters helps you create images that look like they were captured by a DSLR camera. In addition the app features basic editing tools like crop, exposure and contrast and shadow and sharpness. I know that app offers a lot more features than I've discovered, but in the process it's a lot of fun creating better quality images.