Live overlay app??

Hello guys! I'm new and I hope this is the right place to ask this question. If not, please accept my apology and guide me in the right direction.

I have been looking for an app that will allow me to take a picture with a live watermark overlay as I'm taking the picture. I would normally like the overlay/watermark to be in one of the two lower corners. I have found a few apps that will allow you to do this after the picture is taken and editing in the watermark/overlay, but I am wondering if anyone knows of an app that can do this live. I've found apps that can do other live effects, like color changes, mirror, pixelation etc, so I'm guessing it wouldn't/shouldn't be too far of a stretch to have something like this.

Any ideas, or know of any apps out there that can do this???


Thanks in advance!!

Kevin