Blockify Checkout Customizer vs CartWisp: Checkout Validation
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for Blockify Checkout Customizer, Oct 13, 2026 for CartWisp.
The short answer
- Both list a free plan. Paid plans start at $9.99/month for Blockify Checkout Customizer and $5/month for CartWisp.
- Blockify Checkout Customizer lists 13 features CartWisp’s listing doesn’t mention, including Cart alerts, Checkout alerts, Collection-specific.
Head to head
- United States
- United Kingdom
- Canada
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
FREE
- · 1 active single rule (Limited condition)
- · 24/7 Live chat support
- · Best for development stores
BASIC
- · 1 Hide dynamic payment
- · 1 active sync Payment, Shipping
- · 24/7 Live chat support
- · 3 active Shipping Discounts
- · 3 active checkout validation rules
PREMIUM
- · 24/7 Live chat support
- · No limit to set COD fee
- · Order Status Page Customization
- · Unlimited Checkout validation rules
- · Unlimited Payment & Shipping rules
- · Unlimited Shipping Discounts rules
SHOPIFY PLUS
- · All include in Premium
- · Checkout Page Customizations
- · Checkout Upsell & Discounts
- · Exclusive Shopify Plus Condition Set
- · Order Status Page Customization
- · VIP Tier Support
Basic Plan
- · 3 Active Checkout Rules Allowed
- · Basic Payment Method Restriction
- · Basic Preview and Rule Testing Mode
- · Checkout Blocking with Clear Messages
- · Control Maximum Quantity allowed per SKU
- · Free Forever with No Renewal Required
Starter Plan
- · 10 Active Checkout Rules Allowed
- · Country and State-based SKU Restrictions
- · Enforce Shipping Methods & Restrictions
- · Ground-only Shipping Enforcement
- · MOQ Rules by Customer Segment
- · P.O. Box Shipping Restriction
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureBlockify brings powerful checkout customization and checkout rules to your Shopify store. Use Blockify Checkout Rules customizer, validate carts and addresses, set oder limits, and streamline payment and shipping. Reduce friction on checkout customization & stop spam and fake orders with checkout form, and boost AOV with checkout rules/blocks and post‑purchase blocks.
CartWisp helps Shopify merchants enforce checkout rules and validation to prevent invalid, non-compliant, and unfulfillable orders before they are placed. Create rules for MOQ, minimum order value, buyer eligibility, product restrictions, shipping controls, payment method limits, B2B checkout, and compliance workflows.
- Manage your info validation, payment, shipping on checkout page in 1 dashboard
- Create & validate checkout rules by shipping address, customer, date time, cart
- Hide shipping/payment methods to tailor checkout experience for customers
- Hide Express Checkout button on checkout page
- Block invalid orders before they reach fulfillment
- Enforce MOQ, MOV, and B2B buyer eligibility rules
- Restrict shipping methods, regions, and P.O. Boxes
- Control COD, BNPL, invoice, and risky payment methods
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 | Blockify Checkout Customizer |  CartWisp |
|---|---|---|
| Detected stores | 2,953 | Not published |
| Net store change, 28 days | +23 | 0 |
| Stores added, 28 days | 43 | Not enough data |
| Big-brand share | 17% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Canada | Not published |
Reviews
| Measure | Blockify Checkout Customizer | CartWisp |
|---|---|---|
| App Store rating | 4.9 ★ | Not published |
| App Store reviews | 319 | Not published |
| New reviews, 28 days | 10 | Not enough data |
| Reviewers a year or more in | 6% | Not enough data |
Pricing
| Measure | Blockify Checkout Customizer | CartWisp |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month | $5/month(ahead) |
| Longest free trial | 3 days | Not listed |
| Plans listed | 4 | 2 |
Listing
| Measure | Blockify Checkout Customizer | CartWisp |
|---|---|---|
| Shopify category rank | #1 | #150 |
| Shopify App Charts | #1 in Checkout - Other | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Aug 19, 2024 | May 20, 2026 |
| Languages | 1 | 1 |
| Developer | Blockify | Smaitik Ventures |
FAQ
Blockify Checkout Customizer and CartWisp: common questions
- Is Blockify Checkout Customizer or CartWisp cheaper?
- Both list a free plan. Paid plans start at $9.99/month for Blockify Checkout Customizer and $5/month for CartWisp. 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?
- Blockify Checkout Customizer lists 13 the others don’t mention, such as Cart alerts, Checkout alerts, Collection-specific, Custom branding. CartWisp lists 10 the others don’t mention, such as Custom notes, Custom rules, Free shipping, Hide express checkout. 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 8, 2026 for Blockify Checkout Customizer, Oct 13, 2026 for CartWisp; 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 8, 2026 for Blockify Checkout Customizer, Oct 13, 2026 for CartWisp. 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.