Leap Auto Tags | All‑in‑1 Tags

I absolutely love this app. What I LOVE about this compared to other apps - is it will go back and tag orders/customers retroactively if you need it to. Other tagging apps either don't do this at all, or they make you sit on the page and do 50x orders at a time. I tag customers based on what products they buy, so I can easily use Shopify's email marketing to email anyone who bought X. This app is powerful and really helpful, and the developer was very responsive and helpful when I had questions. Really a wonderful product all around.