Notify! Back in Stock|PreOrder

I was looking for an out of stock app that was a widget and not a pop up. Install was super easy and I love how it automatically adjusted to fit my theme with my website. After installing, l received a message from someone from the app asking if they could help tweak where the button was and make it more streamlined. Super awesome customer service, insanely easy to install (Im not super proficient in shopify editing). 10/10