Blockify Checkout Rules Plus vs Essential Upsell & Cross Sellfor Shopify (2026)
Blockify Checkout Rules Plus and Essential Upsell & Cross Sell are both Shopify apps that target the checkout experience, but with very different approaches. Blockify focuses on checkout customization, rule enforcement, and fraud prevention using checkout extensibility functions, catering to merchants who need granular control over the checkout process to optimize the customer experience, manage order limits, and prevent risky transactions. Essential Upsell & Cross Sell, on the other hand, centers around increasing AOV through product upsells, cross-sells, and discounts shown on product pages, cart drawers, and even post-purchase, making it appealing to merchants primarily focused on maximizing revenue per transaction. The key difference lies in their core functionality: Blockify offers tools for customizing the checkout flow to optimize user experience and manage risk, while Essential Upsell focuses on suggestive selling to increase order value. Blockify appears geared toward businesses looking for customizability and security, possibly including those with specific B2B/B2C needs. Essential Upsell targets merchants seeking an immediate AOV boost through automated upselling and cross-selling strategies, providing a less hands-on, more revenue-focused approach. Both apps leverage the Shopify Checkout category, yet their implementations cater to distinctly different merchant priorities.
At a Glance
Blockify Checkout Rules Plus
151 reviews
Essential Upsell & Cross Sell
1,004 reviews
Detailed Overview
Blockify Checkout Rules Plus
Checkout rules and checkout to power checkout customizer an boost your checkout conversion.
Key Features
- Enforce checkout rules and order limits, manage checkout discounts to control CX
- Reduce confusion on the checkout page by hiding, reordering, or renaming options
- Lift AOV with checkout rules and post‑purchase upsell, checkout extensibility.
- Protect revenue with checkout customization to prevent risky orders.
- Tailor B2C and B2B experiences with checkout rules, discounts and customize.
Essential Upsell & Cross Sell
One click upsell and cross sell. Show frequently bought together product upsell & related products.
Key Features
- Show frequently bought products (FBT), related products, product recommendations
- Post purchase upsell & cross sell: Product addons, bought together bundles
- Automatic discount promotions: Add discounts to upsell & "also bought" products
- Product page upsell: Add one click upsell & cross-sell products & BOGO bundles
- Cart upsell: Add upsell cart app, cross-sell & product add-ons to cart drawer
Feature Comparison
| Rating | 4.9/5 | 5/5 |
Rating Blockify Checkout Rules Plus4.9/5 Essential Upsell & Cross Sell5/5 | ||
| Reviews | 151 | 1004 |
Reviews Blockify Checkout Rules Plus151 Essential Upsell & Cross Sell1004 | ||
| Core Functionality | Checkout Customization and Rules Engine | Upselling and Cross-selling |
Core Functionality Blockify Checkout Rules PlusCheckout Customization and Rules Engine Essential Upsell & Cross SellUpselling and Cross-selling | ||
| Target Merchant | Merchants needing advanced checkout control and fraud prevention (B2B/B2C) | Merchants focused on AOV maximization through product suggestions and discounts |
Target Merchant Blockify Checkout Rules PlusMerchants needing advanced checkout control and fraud prevention (B2B/B2C) Essential Upsell & Cross SellMerchants focused on AOV maximization through product suggestions and discounts | ||
| Key Benefit | Reduce checkout friction, prevent fraudulent orders, tailored experiences. | Increase average order value (AOV) through effective upselling strategies. |
Key Benefit Blockify Checkout Rules PlusReduce checkout friction, prevent fraudulent orders, tailored experiences. Essential Upsell & Cross SellIncrease average order value (AOV) through effective upselling strategies. | ||
| Checkout Modification | Hiding, reordering, and renaming options | Adding product recommendations and discounts |
Checkout Modification Blockify Checkout Rules PlusHiding, reordering, and renaming options Essential Upsell & Cross SellAdding product recommendations and discounts | ||
| Post-Purchase | Post-purchase blocks and upsell | Post purchase upsell discounts & automatic promotions |
Post-Purchase Blockify Checkout Rules PlusPost-purchase blocks and upsell Essential Upsell & Cross SellPost purchase upsell discounts & automatic promotions | ||
| Fraud Prevention | Protect revenue with checkout customization to prevent risky orders. | Not explicitly mentioned |
Fraud Prevention Blockify Checkout Rules PlusProtect revenue with checkout customization to prevent risky orders. Essential Upsell & Cross SellNot explicitly mentioned | ||
Our Verdict
If you're primarily concerned with optimizing the checkout experience, setting specific order limits, preventing fraud, and tailoring the experience for B2B or B2C customers, Blockify Checkout Rules Plus is the better choice. Its focus on customization and control provides the tools needed to fine-tune the checkout flow. However, if your primary goal is to quickly and easily increase AOV by suggesting related or frequently bought products, along with discounts and bundles, then Essential Upsell & Cross Sell is the more suitable option. Its strength lies in its upselling capabilities, making it ideal for merchants looking for a relatively hands-off approach to boosting revenue per order. The large number of reviews for Essential Upsell suggests wider adoption and potentially easier onboarding.
Common Questions
Which app is better for preventing fraudulent orders?
Blockify Checkout Rules Plus explicitly mentions fraud prevention as a key feature, using checkout customization to identify and block risky orders. Essential Upsell & Cross Sell does not mention any fraud prevention capabilities.
Which app offers more control over the look and feel of the checkout page?
Blockify Checkout Rules Plus allows you to hide, reorder, and rename checkout options, providing greater control over the checkout's appearance and user experience. Essential Upsell focuses on adding upsell opportunities rather than modifying existing elements.
Which app is easier to set up and use?
Based on the descriptions, Essential Upsell appears to be geared towards a more automated approach with 'one-click upsells' and 'automatic discount promotions', suggesting a potentially simpler setup process than Blockify's more customizable and rule-based system. However, user experience will depend on individual needs and familiarity with each app's interface, and we don't have direct insight into their UIs.
Which app is better for stores selling both B2B and B2C?
Blockify Checkout Rules Plus explicitly supports tailoring B2C and B2B experiences with checkout rules, discounts and customize. Essential Upsell does not specify B2B capabilities, but its upselling functionality could be applied to both types of businesses.
Which app is better for a store with a small product catalog?
Essential Upsell & Cross Sell might be slightly better for a smaller product catalog because it focuses on maximizing sales within the existing product range. Blockify Checkout Rules Plus is more beneficial if a store has a wide variety of products that require specific checkout rules or order limits.
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