Yanet: Back in stock alerts

Simple app that works in scenarios where other apps don't (ex. when you have "continue selling when out of stock" checkbox checked on items in Shopify). Helpful support that will fix your issue even on the free plan. It could be a 4-star because the appearance customizations are limited so the pop-up and buttons don't look as nice as other apps, and their support is email-only with a 12-hour time difference from the US, but an app that works is better than one that doesn't when you have multiple other apps running to make our Shopify store work like a wholesale website.