What camera app would you recommend?

What are the best free and nonfree camera apps?

Searched "windows 8 camera app with pinch to zoom" on google and haven't found it yet

Been lurking around the store. I did find some that let you pinch to zoom for attachable cameras to laptops like logitech's attachable camera.

I'm looking for a clampshell device with a camera on the back. If need be, I'll look at the android options but first I want to see if there are some good windows ones.