I had a issue with a code with one of the ad network and I'm very glad that support has fix it for me without me doing anything at all. I really recommend this app.
I was looking for this kind of app for so long and finally I can see it. Thank you so much for your assistance.
It's exactly doing what I needed. Used to insert google analytics and Chat widget code before closing the tag of the body. It was so quick and easy to install. Customer support was also great and helpful.