Wanna freak out your friend with a picture with ghosts in it? You should try Ghost Effects.
★ Ghost Effects lets you add horrible ghost effects to camera or pictures. Take a photo with your friends with a ghost right behind them and send it to them, and wait to see their reaction. They will get the chills and you will have a good laugh.
This app is only available for idevices. This app is easy to use. Has several free images and then you can upgrade to the expanded package that adds several more. Many of the images are from movies or other famous haunts.