Email Address Validation for E-Commerce

Address Guard vs Clearer.io

Both apps validate Shopify addresses. Address Guard adds carrier-grade validation across 240+ countries, a full automation platform, and costs 33% less per order.

Feature

Price per order
Cost for 1,000 orders/mo
Cost for 5,000 orders/mo
Countries supported
Carrier validation (UPS/FedEx/DHL)
Rules engine (15+ rules)
Workflow automation
Auto-hold flagged orders
Customer notification emails
Email validation
Phone validation
Express checkout support
Shopify Plus required
Multi-language support
App Store rating

$0.05
$50
$250
240+
.
.
.
.
.
($0.01/check)
($0.03/check)
.
No (post-checkout on all plans)
(9 languages)
5.0 stars

$0.06
$60
$300
US focus
.
Partial
.
.
.
.
.
.
No (post-checkout on all plans)
.
4.8 stars

17% Lower Cost Per Order

Address Guard charges $0.05 per order. Clearer.io charges $0.06. That is a 17% difference that compounds with volume.

At 1,000 orders per month, you save $25/month ($240/year). At 5,000 orders, the savings jump to $100/month ($1,200/year). At 10,000 orders, you keep an extra $200/month ($2,400/year).

Both apps use pay-per-use pricing with no monthly minimums or contracts. The difference is purely per-order cost.

Carrier Validation vs Postal-Only

Clearer.io validates addresses against postal databases like USPS. Address Guard validates against postal databases and carrier databases: UPS, FedEx, DHL, Canada Post, Royal Mail, and Australia Post.

Why does this matter? An address can exist in USPS records but still be undeliverable by FedEx or UPS. Remote access points, gated communities, commercial-only zones, and seasonal addresses all pass postal checks but fail carrier delivery. Each failed delivery costs $10-18 in correction fees.

Rules Engine and Workflow Automation

Address Guard includes a rules engine with 15+ configurable rules. Block PO boxes, require apartment numbers for multi-unit buildings, flag military addresses (APO/FPO), reject non-Latin characters, restrict specific regions or countries, and more.

When a rule triggers, Address Guard auto-holds the order, sends the customer an email with a correction link, and syncs the updated address back to Shopify once corrected. No manual intervention needed.

Clearer.io offers partial rules support. Address Guard extends this with full workflow automation, so flagged orders are handled automatically from detection through correction.

Email and Phone Validation Included

Address Guard validates more than addresses. Add email validation ($0.01/check) and phone validation ($0.03/check) to catch typos, detect disposable email addresses, verify mailbox existence, and confirm phone number formatting.

Bad emails mean undeliverable order confirmations and shipping updates. Bad phone numbers mean carriers cannot contact customers for delivery. Address Guard catches all three data quality issues in one platform.

240+ Countries with 9 Language Support

Address Guard validates addresses across 240+ countries with support for 9 languages. The AI parsing engine handles non-standard international formats, non-Latin characters, and country-specific postal rules.

Clearer.io focuses primarily on the US market. Address Guard provides the international coverage merchants need when shipping to Canada and beyond.

Inkbox

“Super happy I found this app! Our undeliverable addresses and associated labor have dropped by 40% since starting to use Address Guard!”

Yaniv Logistics Manager test

Xena Workwear

“Address Guard works like a charm and the support is TRULY fantastic. The founder is responsive and a fast implementor of upgrades. I would say that this is the best support I’ve ever experienced with a 3rd party app, hands down.”

Dmitry Chief Operations Officer

Sunday Swagger

“The integration process and support from Address Guard has been nothing but Outstanding!! The solution has performed exactly as expected and had offered a significant improvement to our deliverability.”

Gary Chief Operations Manager

Frequently Asked Questions

Is Address Guard really 33% cheaper than Clearer.io?

Yes. Address Guard charges $0.04 per order and Clearer.io charges $0.06 per order. Both use pay-per-use pricing with no monthly minimums. The 33% savings applies at every volume level. At 5,000 orders per month, you save $1,200 per year.

Does Address Guard include carrier database validation?

Yes. Address Guard validates against postal databases plus carrier databases including UPS, FedEx, and DHL. Carrier validation catches addresses that pass postal checks but cannot actually be delivered to by specific carriers. Clearer.io validates against postal databases (USPS, SERP)

Can I switch from Clearer.io to Address Guard?

Yes. Switching takes about 15 minutes. Install Address Guard from the Shopify App Store, configure your validation rules, and disable Clearer.io. Both apps work through Shopify’s Checkout Extensions (for Plus) or post-checkout validation (for all plans), so there is no overlap or conflict. The Address Guard team offers hands-on onboarding support.

Does Address Guard support express checkout like Clearer.io?

Yes. Both Address Guard and Clearer.io support express checkout flows including Shop Pay, Apple Pay, and Google Pay. Addresses from accelerated checkout are validated after selection, ensuring no orders slip through unchecked.

How do the app store ratings compare?

Address Guard has a 5/5 star rating and Clearer.io has a 4.8-star rating on the Shopify App Store. Both are highly rated. Address Guard’s differentiators are in feature depth (carrier validation, rules engine, workflow automation) and pricing, while both apps perform well on user satisfaction.

Switch to Address Guard

33% lower cost. Carrier-grade validation. Full workflow automation. Start with 100 free validations.