Quick Read
Merchants on Shopify need a reliable way to catch address errors before they lead to failed deliveries and customer frustration. Address Ninja is the best app for address validation because it works on all Shopify plans, offers essential address checks, and keeps pricing simple with transparent monthly plans, avoiding the unpredictable costs of usage-based apps.
Address Ninja is the Best Shopify App for Validating Addresses on Your Store
Failed deliveries and incorrect addresses are a common headache for merchants, leading to lost revenue, unhappy customers, and extra manual work. Many apps on the market either limit their features to Shopify Plus stores or use usage-based pricing models that can quickly add up as your order volume grows.
Address Ninja stands out by offering a well-rounded set of validation tools, like blocking missing house numbers, special characters, and PO boxes, while keeping things affordable and predictable with clear flat-rate monthly pricing. Plus, it works for all Shopify merchants, no matter your plan, making it an accessible and dependable choice for stores of any size.\\
What are the Top Apps for Address Validation on Shopify?
1. Address Ninja
Well-rounded and affordable, but no Postal Code or ZIP Code validation.
Pricing: Starts at $4.99/month with a 14-day free trial.
Address Ninja is a flexible and affordable address validation app for Shopify merchants who want to reduce failed deliveries and customer errors at checkout. What sets Address Ninja apart is its accessibility: it works on all Shopify plans, not just Shopify Plus, which makes it an attractive option for small to mid-sized stores.
With Address Ninja, you can block customers from checking out if their address is missing critical information, like a house number or street name. It also offers protection against special characters, non-Latin alphabets, and even PO Boxes. Express checkout validation is included as well, helping you catch errors from PayPal Express, Google Pay, Apple Pay, and similar fast checkout methods.
Address Ninja plans start at $4.99/month, with an upgrade to the Basic plan at $9.99/month if you want to include DHL Station checks. The Pro plan at $14.99/month unlocks advanced custom rules with regex, giving you more control to block things like multiple spaces, specific character sets, and more.
One thing to note: Address Ninja does not include Postal Code or ZIP Code validation, so if that’s essential for your store, you may want to consider an alternative app alongside it.
Key Features:
- Block addresses with non-Latin or special characters
- Prevent checkout if the address is missing a house number or street name
- Block all PO Boxes
- Express checkout validation for PayPal, Google Pay, and Apple Pay
- Works on all Shopify plans (not limited to Shopify Plus)
- Advanced custom regex options on Pro plan
What Users Are Saying
“Great and quick support. Also a good pricing, better than other well-known apps.”
-Real Roots, Netherlands
“The support is top notch not only do they understand their app well and it not being an outsourced team they really understand Shopify and how to code within Shopify. I recommend not only this app but the members of this team. 5 stars.”
-Scooter King Orlando, USA
2. Clearer.io Address Validator
Free plan available, but lacks pre-checkout validation for non-Shopify Plus merchants.
Pricing: Free for up to 100 orders per month. After that, $0.06 per order.
Clearer.io Address Validator is a user-friendly option for Shopify merchants who want to reduce failed deliveries by flagging invalid addresses at checkout. It automatically detects issues like PO boxes, military addresses, emoji use, and problematic ZIP codes, offering smart suggestions to your customers in real-time.
One of the app’s standout features is the ability to customize address prompts and messages, helping you maintain your store’s branding and customer experience. It also works with express checkout options like Apple Pay, Google Pay, and PayPal Express, and setup is quick with no coding required.
However, there’s an important limitation to be aware of: pre-checkout validation is only available to Shopify Plus merchants. If you’re on a lower plan, Clearer.io can only validate addresses after checkout, showing customers suggestions on the “Thank You” page. While helpful, customers can still choose to ignore these recommendations.
The pricing model is simple but can add up quickly for higher-volume stores. Clearer.io is free for the first 100 orders each month, but after that, a usage-based fee of $0.06 per order applies. For example, if you process 1,000 orders in a month, the cost would be around $54.
3. VL: Checkout Address Validator
Free plan available, but limited to U.S.-focused validation and fewer integrations.
Pricing: Free for up to 3 validation rules at checkout. After that, $0.04 per order.
VL: Checkout Address Validator is a simple address validation app that focuses primarily on U.S. addresses. It offers real-time feedback during checkout, helping customers fix common address errors like PO boxes, USPS issues, military addresses, and ZIP code mismatches.
The app goes beyond just validation, it also allows for advanced checkout customization. You can reorder, rename, or hide payment and shipping methods, and fully customize the prompt content and language to match your store’s branding.
However, there are a few limitations to keep in mind. VL is mostly geared toward U.S. addresses and doesn’t support services like DHL station checks. The free plan covers up to 3 validation rules at checkout, but if you need more flexibility, or want to validate addresses on the “Thank You” page, you’ll need to move to their usage-based pricing at $0.04 per order. For high-volume stores, this can quickly add up.
With a smaller user base, VL currently has 9 reviews and a 4.0-star rating on the Shopify App Store.
4. Address Validator AddressHero
Free plan available, but only post-checkout validation.
Pricing: Free Lite plan available. Pro plan at $0.04 per order.
AddressHero is a straightforward address validator that works with any Shopify plan, making it accessible to all merchants. The app automatically flags incorrect delivery addresses and offers automatic suggestions, helping customers correct their details during the checkout process.
However, AddressHero’s validation happens after checkout, specifically on the Thank You page. It uses the Google API to verify addresses and prompts the customer to confirm or adjust their address. Keep in mind, though, customers can choose to ignore these prompts, so it’s not a guaranteed fix.
The free Lite plan includes basic features like blocking addresses without house numbers, blocking PO boxes, and blocking addresses with special characters. If you need more advanced options like full address validation, automatic suggestions, express checkout compatibility, and Klaviyo integration, you’ll need to upgrade to the Pro plan, which costs $0.04 per order.
AddressHero has a solid reputation on the Shopify App Store, with 60 reviews and a 4.9-star rating.
5. Addressfinder
Great for Australia and New Zealand stores, but Shopify Plus only.
Pricing: First 100 lookups free, then $0.05 USD per lookup.
Addressfinder is a region-specific address validator, built specifically for Shopify Plus stores based in Australia and New Zealand. With real-time validation and autocomplete, it helps customers complete their address accurately at checkout, reducing failed deliveries and manual errors.
The app verifies addresses directly against Australia Post and NZ Post, with a deep understanding of local address structures, including unit numbers, PO boxes, and rural delivery addresses. Merchants can block undeliverable addresses like PO boxes and rural locations for more reliable shipping outcomes.
However, there are a few limitations to consider. Addressfinder is only available to Shopify Plus merchants, and it’s heavily focused on AU/NZ regions. If your store ships internationally, this app may not be the best fit.
The pricing model includes 100 free lookups, after which it’s $0.05 USD per lookup. Since it’s a newer app launched in 2025, there are no user reviews yet on the Shopify App Store.
Key Takeway
If you’re looking for the most well-rounded address validator, Address Ninja is hard to beat. Unlike other apps that limit features to Shopify Plus merchants or charge unpredictable usage-based fees, Address Ninja works for all Shopify plans and keeps pricing simple with clear monthly plans. It covers most of the essential checks merchants need, making it a reliable and cost-effective choice for stores of any size.