Clearer.io Address Validator

App has worked great for us. Support has been outstanding. We had an issue with some malicious code that we thought was related to this app, but they helped us determine exactly which other code was causing the problem. Don't think I have ever had another app company help us out when it wasn't really their problem.
Would definetly recommend!

Works well with Shopify's 1-page checkout. Customizable to fit your store and if you have any issues, support has been great so far. Shout out to Osmand for helping us with a recent address issue!

This app has been quite helpful in standardizing addresses. We have it operating post checkout - the customer has the opportunity to select the corrected address on the order confirmation page. Overall, I am happy with the results. I would use it again and recommend it to others.

The price is fair for the amount of money you avoid losing on Shippings with errors. They have detailed video documentation which helps to solve the problems very fast, and the best thing is the support (Thanks Osmand) I don't know how they do it but the answers are very fast and with precise instructions.

Very grateful for their support team who reached out to us proactively regarding an issue with our implementation. Great support overall, timely responses with detailed instructions and custom data pulls when requested. App is easy to install and works great so far with Checkout Extensibility.

The app automatically flags incomplete or incorrect addresses during checkout, prompting customers to correct them. This proactive approach has reduced the number of failed deliveries and returned packages.

While Address Validator Plus offers robust features for address validation, it's important to note that certain functionalities, such as validating addresses during the checkout process, may require a Shopify Plus plan due to Shopify's platform limitations

Very helpful and supportive team. Address Validator is working really good and is saving our time from calling customers and confirming their addresses.

Been using this app for years - works well and support is quick and helpful.

Very useful app. Our 3PL warehouse can't accept more than 55 characters for the address line 1 field — with this app we can limit the characters and show a custom error message. Additionally, we're starting to ship more internationally and found some city addresses can't be longer than 30 characters. It's not possible to limit the city field independently, but the app developer quickly added this for our convenience. The support has been very top-notch!