Checkout Address Validator vs Chek Checkout Rules Validation
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Checkout Address Validator, Sep 30, 2026 for Chek Checkout Rules Validation.
The short answer
- Chek Checkout Rules Validation lists 3 features Checkout Address Validator’s listing doesn’t mention, including Custom rules, Payment method rules, Shipping method rules.
Head to head
Standard
- · Block orders missing a house number
- · Buyer messages in every store language
- · Custom house-number rule per country
- · Require a postal code per country
- · Works on Shop Pay, PayPal & Apple Pay
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureExpress wallets — Shop Pay, PayPal, Apple Pay, Google Pay — skip your address form, so orders arrive with a street but no house number, or no postal code at all, and the delivery fails. A missing house number only produces a warning at checkout, which the buyer can ignore. This app turns it into a block: checkout cannot be completed until the address is fixed, wallets included.
Chek helps Shopify stores validate checkout information and prevent invalid orders. Take control of your checkout rules with address validation to block PO Boxes and military addresses, customer validation to catch fake names, and cart validation to set order value, weight and quantity limits. Fewer failed deliveries, fewer returns, more profit per order. Simple rules, clear error messages, no code needed.
- Blocks checkout when a postal code or house number is missing
- Validates express wallet checkouts: Shop Pay, PayPal, Apple Pay, Google Pay
- Every country you ship to, with Shopify's postal-code rule prefilled
- P.O. boxes, packstations and pickup points are never blocked
- Validate addresses for missing details before checkout.
- Reduce failed deliveries caused by address issues.
- Apply validation rules that fit your store’s checkout needs.
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Checkout Address Validator |  Chek Checkout Rules Validation |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Checkout Address Validator | Chek Checkout Rules Validation |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 1 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Checkout Address Validator | Chek Checkout Rules Validation |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $4.99/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | Checkout Address Validator | Chek Checkout Rules Validation |
|---|---|---|
| Shopify category rank | #125(ahead) | #226 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Aug 17, 2026 | Sep 18, 2026 |
| Languages | 4 | 1 |
| Developer | Schwan I/O | Chek |
FAQ
Checkout Address Validator and Chek Checkout Rules Validation: common questions
- What features does each app list that the other doesn’t?
- Chek Checkout Rules Validation lists 3 the others don’t mention, such as Custom rules, Payment method rules, Shipping method rules. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for Checkout Address Validator, Sep 30, 2026 for Chek Checkout Rules Validation; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for Checkout Address Validator, Sep 30, 2026 for Chek Checkout Rules Validation. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.