Address Validation iO

One of the most helpful apps we have added to our Shopify store

We have been using Address Validation iO for a while now, and the latest update genuinely improved our workflow. The new email validation feature is extremely helpful. It catches small customer typos before they turn into support issues and it already saved us a few times.

The address checks were already reliable, but the update made everything feel even smoother. The improved address suggestions, the country-specific rules, and the new layout customization options helped us block incorrect or incomplete addresses before orders were placed. Since the update, our return-to-sender rate has dropped noticeably.

What I appreciate most is how simple and consistent Address Validation iO is. It fixes one of the most common problems in ecommerce: wrong addresses and wrong customer emails. It works quietly in the background, but you immediately see the positive impact.

For any store that ships regularly, Address Validation iO honestly pays for itself.