CartGuard vs Cart Validation: Custom Rules
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 25, 2026 for CartGuard, Jun 23, 2026 for Cart Validation.
The short answer
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCartGuard adds a checkout rule that stops an order when the cart holds a product you marked as not for sale. Mark a product with a tag, or switch on Block checkout for that one product. You can also block a product type, vendor, or theme template. Approved buyers still get through: exempt customers by tag, exempt one customer, or exempt every B2B buyer. Give a product a date and it starts selling that day.
Stop losing money on shipping errors and manual order reviews. Our clinical rules engine puts a bouncer at your checkout to block invalid orders instantly. Built on Shopify Functions for maximum speed, you can enforce minimum quantities, restrict zip codes, or hide payment methods based on 40+ logic conditions.
- Block checkout by tag: Choose from preset tags or use your own
- Block by product type: Block entire product categories at once
- Block by template: Automatically tag products using a specific template suffix
- Custom error messages: Personalize the message customers see
- Block checkout based on cart rules (min/max value, quantities, product types)
- Allow or block checkout based on customer tags
- Create unlimited conditions and combine them
- Show custom messages when rules apply
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 |  CartGuard |  Cart 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 | CartGuard | Cart Validation |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 2 | 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 | CartGuard | Cart Validation |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | Not published |
Listing
| Measure | CartGuard | Cart Validation |
|---|---|---|
| Shopify category rank | #68 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Apr 20, 2026 | Nov 25, 2025 |
| Languages | 1 | 1 |
| Developer | KW Consulting | Auremist |
FAQ
CartGuard and Cart Validation: common questions
- 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 Sep 25, 2026 for CartGuard, Jun 23, 2026 for Cart 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 Sep 25, 2026 for CartGuard, Jun 23, 2026 for Cart 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.