Verlein

I'm using the free version of the app right now: it is simple but easy to use and works well. The main reason I like it so much is that it correctly integrates with Shopify's customer lists. I tried two other for pop-up email subscriptions before this one, and those apps just didn't work well with Shopify - either the subscribers didn't make it to Shopify at all, or if they did they weren't considered subscribers. MailMunch correctly and quickly updates my Shopify store with the new subscribers, so I'm quite happy with this. I gave four stars because it would be nice to be able to add images to the pop-ups in the free plan, but hey, it's free so can't complain too much! The paid plans allow feature-rich pop-ups including images, so that capability is there.

Very buggy. Constantly have to uninstall and reinstall for it to work. Support button does not work, message can never be sent. Google Merchant Center is a disaster in any case, but this app doesn't help. There's got to be a better way...