Amp Back in Stock | PreOrder

This is one of my favorite apps, I have been using it for a few years now and the support is fantastic and quick, when we changed our theme, they reinstalled the button for us on our new theme with the custom edits we asked for and it looks great! Although this app isn't cheap, I have found it definitely worth having if you have out of stock products that you will be getting back in, you can see the sales come in as soon as you get stock back in! I'm currently on the small plan for $39.00 a month.