📦 Solving failed deliveries on Shopify – 1 click address validation at checkout

Hey Product Hunt! 👋

I'm Felix and I recently launched a small but mighty Shopify app that helps stores prevent failed deliveries before they happen.

You know those annoying “return to sender” packages or customer emails like “My address was correct, but I never got it!”? Yeah, that.

👉 Address Validation iO checks and fixes addresses right inside the Shopify checkout – no copy-pasting, no extra screens, no friction.

✨ International support, PO Box detection, apartment # reminders, and more.

Why I built this:

After seeing how much time merchants lose to support tickets and shipping issues, I wanted to build something that just works, quietly in the background, and gives peace of mind.

✅ First 500 address validations are free – no strings attached

✅ Works globally

✅ No developer needed

Would love your thoughts, feedback, or questions! And if you've ever had a delivery nightmare – I feel your pain. Let’s fix it.
🚀 https://apps.shopify.com/address-validation-io