Mia & Jon

I used this app to help me track on items that customers would love to be notify when they are restocked. Their customer service is very good. I contacted them at 3 am to help me add the back in stock notify button on my theme and Sam was responded in less than 5 mins and fixed my problem within a few mins. Very interesting app, you should give it a try to get the idea of which product and size are on demand