Back In Stock,Notify Me: Kbite

I was looking for an app which would provide me simple and hassle free Restock Alert option in which I get notified for the product and automatically customer gets notified on restock, I tried many other good rated apps but Cartbite turned out to be the most easy and simple. Not just that I wanted a little change in the application and when I asked the support, to my surprise they did it in few minutes. I don't write reviews much but their service & customer support is top notch!