Cart Lock:Block Checkout Rules vs CheckoutGuard Block Mixed Cart
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 4, 2026 for Cart Lock:Block Checkout Rules, Oct 13, 2026 for CheckoutGuard Block Mixed Cart.
The short answer
- Only Cart Lock:Block Checkout Rules lists a free plan. Paid plans start at $6.99/month for Cart Lock:Block Checkout Rules and $3.99/month for CheckoutGuard Block Mixed Cart.
- Cart Lock:Block Checkout Rules lists 15 features CheckoutGuard Block Mixed Cart’s listing doesn’t mention, including Cart alerts, Cart-based, Checkout alerts.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free Development
- · Cart total, quantity, products, delivery
- · Customer tag, company, discount, market
- · Free for dev store
- · Multiple rules & more
Essential
- · Includes 30+ conditions.
- · Multiple conditions with AND logic.
- · Unlimited orders. No coding required.
- · Up to 5 active rules.
Professional
- · Includes 30+ conditions.
- · Multiple conditions with AND logic.
- · Unlimited orders. No coding required.
- · Up to 10 active rules.
Elite
- · Includes 40+ conditions.
- · Multiple conditions with AND logic.
- · Multiple conditions with OR logic.
- · Unlimited orders. No coding required.
- · Up to 25 active rules.
Starter
Growth
Pro
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCart Lock offers customizable conditions to block unwanted purchases based on specific rules such as country, product quantity, customer profiles, discounts, markets, and more—making it ideal for stopping bots. With real-time validation powered by Shopify Functions, it ensures only valid orders are placed. Transparency is maintained through clear warnings, keeping customers informed.
Checkout Guard helps merchants prevent invalid orders before they reach checkout. It allows merchants to define rules that block carts with incompatible items, such as mixed pre-orders and in-stock products, conflicting shipping types, or fulfillment restrictions. Rules are enforced at checkout so invalid orders are stopped before payment.
- Block customers by country blocker, amount, minimum order quantity limits.
- Block fraud orders, block shipping, zip codes, states and block 0 orders.
- Validate orders, block cart currency, discount amounts, customer tags, company.
- Block country. Show warnings on cart, product pages and during checkout.
- Block pre-order + in-stock items being purchased together
- Block carts with conflicting shipping or fulfillment methods
- Block carts with products that must be purchased alone
- Block invalid or incompatible product combinations
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 |  Cart Lock:Block Checkout Rules |  CheckoutGuard Block Mixed Cart |
|---|---|---|
| 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 | Cart Lock:Block Checkout Rules | CheckoutGuard Block Mixed Cart |
|---|---|---|
| App Store rating | 4.8 ★ | Not published |
| App Store reviews | 89 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | 13% | Not enough data |
Pricing
| Measure | Cart Lock:Block Checkout Rules | CheckoutGuard Block Mixed Cart |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $6.99/month | $3.99/month(ahead) |
| Longest free trial | 3 days | 14 days |
| Plans listed | 4 | 3 |
Listing
| Measure | Cart Lock:Block Checkout Rules | CheckoutGuard Block Mixed Cart |
|---|---|---|
| Shopify category rank | #15 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 11, 2024 | Jan 12, 2026 |
| Languages | 1 | 1 |
| Developer | KlinKode | Dauti Enterprises Inc |
FAQ
Cart Lock:Block Checkout Rules and CheckoutGuard Block Mixed Cart: common questions
- Is Cart Lock:Block Checkout Rules or CheckoutGuard Block Mixed Cart cheaper?
- Only Cart Lock:Block Checkout Rules lists a free plan. Paid plans start at $6.99/month for Cart Lock:Block Checkout Rules and $3.99/month for CheckoutGuard Block Mixed Cart. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Cart Lock:Block Checkout Rules lists 15 the others don’t mention, such as Cart alerts, Cart-based, Checkout alerts, Collection-specific. CheckoutGuard Block Mixed Cart lists 1 the others don’t mention, such as Custom 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 Nov 4, 2026 for Cart Lock:Block Checkout Rules, Oct 13, 2026 for CheckoutGuard Block Mixed Cart; 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 Nov 4, 2026 for Cart Lock:Block Checkout Rules, Oct 13, 2026 for CheckoutGuard Block Mixed Cart. 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.