I already have a few apps that do reflections. Some with water, one without. Photo Reflection is a free app that offers more than the free water reflection apps do. There are 4 different reflection layouts to choose from. You have control over how much is reflected and you can even fade out the reflection with a gradient. Photo Reflection even offers some basic editing tools. Not bad for a free app.
I shot this with ProHDR and edited with SimplyHDR before using Photo Reflection.