Cart Block: checkout validator vs Kedra Checkout Rules & Upsells
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026.
The short answer
- Kedra Checkout Rules & Upsells is detected on 103× as many Shopify stores as Cart Block: 205 vs 2 as of Nov 9, 2026.
- On the Shopify App Store: Cart Block 4.7 from 26 reviews and Kedra Checkout Rules & Upsells 4.8 from 509 reviews.
- Both list a free plan. Paid plans start at $3.99/month for Cart Block and $6.99/month for Kedra Checkout Rules & Upsells.
- Cart Block lists 4 features Kedra Checkout Rules & Upsells’s listing doesn’t mention, including Cart alerts, Collection-specific, Geolocation.
Head to head
- Australia
- Singapore
- United States
- France
- Portugal
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
FREE DEV
- · Free for Shopify Plus sandbox stores
- · Free for dev stores
Premium Plan
- · - All Free Plan included
- · - Block Cart
- · - Block Checkout
- · - Premium Support
- · - Prevent Fraud
- · - Unlimited Checkout Validation Rules
Advanced Plan
- · - All Premium Plan included
- · - Block Cart And Checkout
- · - Mix Different Conditions
- · - Premium Support
- · - Target Specific Markets
- · - Unlimited Checkout Validation Rules
Ultimate Plan
- · - All Advanced Plan included
- · - Block Discount Codes
- · - Block with Specific Delivery Method
- · - Block with Specific Payment Method
- · - Premium Support
- · - Shopify Plus Only
Free
- · 1 active rule in total, any type
- · 1 condition per rule
- · 7 days of checkout analytics
- · Checkout validation
- · Estimated tax & duties display
- · Hide, reorder, rename payment methods
Starter
- · $1/month for your first 3 months
- · 3 active rules in total, any type
- · 3 conditions per rule
- · Custom checkout error messages
- · Full checkout analytics
Starter Plus
- · $1/month for your first 3 months
- · Everything in Starter
- · Post-purchase upsell offers
Unlimited
- · $1/month for your first 3 months
- · Custom checkout error messages
- · Full checkout analytics
- · Post-purchase upsell offers
- · Unlimited checkout validation rules
- · Unlimited conditions per rule
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCartBlock's customizable conditions allow you to set specific rules, blocking purchases an orders based on criteria like product quantity, country, customer profiles, discount code and much more making it the perfect solution for blocking customers or bots. It maintains transparency through warnings and messages at critical points, ensuring customers are well-informed.
Checkout customization made easy: create rules yourself or with the AI assistant. Hide, rename or reorder payment and shipping methods. Validate checkout to block PO boxes and fraud, and set order limits. Apply conditional shipping discounts and free shipping. Grow order value with post-purchase upsells and pre-filled checkout links with QR codes. Show estimated tax and duties.
- Block or validate purchase in product, cart and checkout page.
- Display warnings and messages on product pages, cart pages, and during checkout.
- Bots Block: protect your store from fraudulent transactions trough transparency.
- Built using "Native Shopify Functions” = Faster and More Integrated
- Validate checkout rules to ensure only eligible orders are processed
- Hide, rename, or reorder shipping methods based on conditions
- Hide, rename, or reorder payment methods based on conditions
- Apply conditional shipping discounts
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 Block |  Kedra Checkout Rules & Upsells |
|---|---|---|
| Detected stores | 2 | 205(ahead) |
| Net store change, 28 days | 0 | +11 |
| Stores added, 28 days | Not enough data | 11 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Electronics | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | Australia, Singapore | United States, France, Portugal |
Reviews
| Measure | Cart Block | Kedra Checkout Rules & Upsells |
|---|---|---|
| App Store rating | 4.7 ★ | 4.8 ★(ahead) |
| App Store reviews | 26 | 509(ahead) |
| New reviews, 28 days | 2 | Not enough data |
| Reviewers a year or more in | Not enough data | 0% |
Pricing
| Measure | Cart Block | Kedra Checkout Rules & Upsells |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $3.99/month(ahead) | $6.99/month |
| Longest free trial | 7 days | 5 days |
| Plans listed | 4 | 4 |
Listing
| Measure | Cart Block | Kedra Checkout Rules & Upsells |
|---|---|---|
| Shopify category rank | #11 | #13 |
| Shopify App Charts | Not on this week’s charts | #8 in Checkout - Other |
| Built for Shopify | Yes | Yes |
| Launched | Feb 2, 2024 | Apr 15, 2025 |
| Languages | 1 | 1 |
| Developer | Nextools | Kedra Apps |
FAQ
Cart Block and Kedra Checkout Rules & Upsells: common questions
- Which is more popular, Cart Block or Kedra Checkout Rules & Upsells?
- Kedra Checkout Rules & Upsells is detected on 103× as many Shopify stores as Cart Block: 205 vs 2 as of Nov 9, 2026.
- Is Cart Block or Kedra Checkout Rules & Upsells cheaper?
- Both list a free plan. Paid plans start at $3.99/month for Cart Block and $6.99/month for Kedra Checkout Rules & Upsells. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Cart Block or Kedra Checkout Rules & Upsells?
- On the Shopify App Store: Cart Block 4.7 from 26 reviews and Kedra Checkout Rules & Upsells 4.8 from 509 reviews.
- What features does each app list that the other doesn’t?
- Cart Block lists 4 the others don’t mention, such as Cart alerts, Collection-specific, Geolocation, Product page alerts. 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 9, 2026; 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 9, 2026. 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.