This is an info Alert.
x402 Logo
  • Product
    • Become Agent-Ready
      • Merchants
        Agentic Commerce — list your store across ChatGPT, Gemini, Claude & Perplexity
      • Publishers
        Monetize your content when AI agents read, cite, or train on it
      • SaaS Companies
        Treat AI agents as first-class customers with agent-priced checkout
    • Monetize
      • Monetize MCP Server
        Charge per call on any MCP server in 2 minutes
      • Monetize AI Agents
        Turn n8n, Zapier, Activepieces workflows into revenue
      • Agent Feed
        Pay-per-query access to licensed publisher content for your agents
  • Resources
    • xpay Ecosystem
      • xpay✦ Tools
        1,000+ pay-per-use tools for your AI agents
      • Agent-Ready SaaS Index
        25,481 SaaS scored on agent-buyability
      • SaaS Pricing Database
        Pricing pages indexed across 1,000+ categories
      • Shopify Apps Directory
        Every Shopify app, with its full review history
      • GitHub
        Open source repositories
    • Agent Building
      • Agent Frameworks
        AI frameworks for building multi-agent systems
      • x402 Integration
        AI frameworks with x402 payment integration
      • Networks
        Blockchain networks supporting x402
    • Company
      • About xpay✦
        Our mission, products, and protocols
      • Blog
        Latest insights and updates
      • Docs
        Complete xpay documentation
  • Pricing
  • Blog
  • Docs
Get Started
  1. xpay

  2. Shopify apps

  3. Checkout - Other

  4. Checkout Blocks & Customizer

Checkout Blocks & Customizer

by Marmeto Apps

5.0

(11 reviews)

70/100 · SolidFree
Best suited for merchants building custom checkout experiences with Shopify's checkout extensions.

Convert your checkout into a conversion engine with custom checkout rules, fields and customizer. Customize your Shopify Plus Checkout with banners, promo code blocks, cart editing, custom fields and smart checkout rules. Add trust messages, show offers, collect GST/VAT and guide customers with powerful checkout blocks. Built on Shopify Checkout Extensibility to improve clarity, reduce drop-offs and boost conversion for Plus merchants. Customize your Shopify Plus Checkout with banners, promo code blocks, cart editing, custom fields and smart checkout rules. Add trust messages, show offers, collect GST/VAT and guide customers with powerful checkout blocks. Built on Shopify Checkout Extensibility to improve clarity, reduce drop-offs and boost conversion for Plus merchants. more Add banners and messages to boost trust and conversions at checkout. Checkout Cart Editing (change quantity, remove items,change variants). Display available discount codes inside checkout to reduce drop-offs. Collect GST/VAT, notes or any custom fields during checkout. Hide or reorder payment options with advanced checkout logic.

Copy from the Shopify App Store listing, unedited.
View on ShopifySee the scorecard
Who it’s for
Checkout - Other
What it moves
Top line

conversion rate and average order value

What it costs
Free
How it’s supported
70/100

Solid · from 11 reviews

What it does

Add banners and messages to boost trust and conversions at checkout.

Checkout Cart Editing (change quantity, remove items,change variants).

Display available discount codes inside checkout to reduce drop-offs.

Collect GST/VAT, notes or any custom fields during checkout.

Hide or reorder payment options with advanced checkout logic.

Plan fit
There is no plan to choose

The listing shows this as free, with no paid tiers published — so there is no volume question to answer and nothing to size yourself against. Check the listing for in-app charges before you rely on that.

70

/ 100
Solid
low confidence

Scored on 11 merchant reviews we hold for Checkout Blocks & Customizer, across five checks. Every figure is computed from those reviews — expand any row to see the counts behind it.





Computed from the 11 reviews we hold, with 12-month windows measured to 2026-08. This scores the public review record — it is not a review of the software itself, and a low score often means we hold little evidence rather than poor evidence.
Review history
2024–2026 · 11 reviews read
Reviews per year
20241 reviews
20254 reviews
20266 reviews
What merchants say

5.0

11 reviews
5★100%
4★0%
3★0%
2★0%
1★0%
Developer replies
45%
of reviews get an answer
Reviewed at 12m+
20%
had used it a year when they wrote
From 11 reviews read. Typical reviewer had used the app for 5.5 months. Most merchants review in their first month, so this reflects when people write — not how long they stay.
Recent merchant reviews

The newest 8 of 11. Open one to read it in full, with the developer's reply where there is one.

Marmeto has been sooo helpful. Nice APP

Nice app

Great support and very useful tools

Great checkout customization app! This app makes it incredibly easy to customize the Shopify checkout without any coding. Adding banners, upsells, custom fields and checkout rules is straightforward and effective. It’s helped improve our checkout experience and conversions, and the support team is responsive and helpful. Highly recommended for any store wanting more control over checkout.

Great app to customise the checkout experience. Showing promo codes, adding fields, and reordering payment options have really helped improve conversions. Also love the ability to collect VAT/GST info and encourage prepaid payments with exclusive offers. Works well with Shopify Checkout. Highly recommend!

Developer repliedLove hearing this. Glad the checkout customisations like promo codes, extra fields, and payment reordering are making a real impact on conversions. The VAT and prepaid offers callouts are great to see in action too. Thanks for the recommendation and for choosing us Show more

We've been using this app for a while now and continue to be impressed by the range of checkout features it offers. Setting up each feature takes just minutes, and everything is incredibly easy to use. The support team is also responsive and always ready to help. Highly recommend it to anyone looking to streamline and elevate their Shopify checkout experience.

Developer repliedReally appreciate you sharing this. Glad to hear the checkout features have been easy to set up and are actually saving time, and even better that the support experience has been solid. Thanks for trusting us and for the recommendation. Show more

This app made it so easy to customize our Shopify Checkout without any coding. It’s packed with features like banners, upsells, smart discounts, custom input fields and more. The GST verification and upsell we added has been especially helpful for our store. The support team is also fast and helpful whenever we need them. Super user-friendly and full of value -highly recommended for any store looking to enhance the checkout experience.

Developer repliedThis means a lot. Really glad the checkout customisations were easy to set up without code and that features like banners, upsells, smart discounts, and GST verification are delivering real value for your store. Happy to hear our support team has been helpful too. Thanks for trusting us! Show more

This app offered really nice features, including Pre-paid discount, which no other app did. Also, support is super responsive and quick to release features, and helped even with some edge cases

Developer repliedReally glad to hear that. The prepaid discount use case is a big one for many stores, so it’s great to know it’s been valuable for you. Appreciate the kind words about our support and product velocity. Show more

Checkout Blocks & Customizer FAQ

Answered from this app's own listing and its full review record.

Best suited for merchants building custom checkout experiences with Shopify's checkout extensions.

The Shopify App Store lists this app as “Free”. It does not publish plain monthly prices we can compute against.

On our scorecard Checkout Blocks & Customizer rates 70 out of 100 — solid — read from 11 merchant reviews. The developer has published replies to 5 of 11 reviews. The score reflects what the review record shows, nothing more.

11 merchants have reviewed Checkout Blocks & Customizer, averaging 5.0 out of 5. We hold the review history from 2024 to 2026, which is what the year-by-year chart on this page is built from.

Quick facts
At a glance
Merchant rating

5.0 / 5 · 11 reviews


Rating, last 12 months

5.00 from 6 reviews


New reviews, last 12 months

6


Developer replies

5 of 11 reviews


Typical reviewer had used it

5.5 months


Pricing

Free


On the App Store since

May 9, 2023


Review history held

2024 – 2026

Integrates with
Checkout
Customer accounts
Shopify Admin
checkout customizer
Checkout extensions
checkout form | extensibility
checkout functions
checkout rules | upsell
checkout script editor

Categories
Checkout - OtherForms
Will AI shoppers find this store?

Apps like this one convert the traffic you already have. Getting recommended by ChatGPT and Perplexity is a separate problem.

Run a free readiness check
Alternatives
Instead of Checkout Blocks & Customizer

Same categories, by review volume.

Aftersell Post Purchase Upsell
4.8874 reviews

SMART Checkout Rules & Upsells
5.0573 reviews

Kedra Checkout Rules & Upsells
4.8494 reviews

Blockify Checkout Customizer
4.9273 reviews

Payment Rules Hide PaymentHero
5.0200 reviews

Shopify Checkout Blocks
4.2178 reviews
x402 Logo

The agent-readiness stack for the AI shopping era — helping merchants, publishers and SaaS companies get discovered, cited and transacted with by ChatGPT, Perplexity, Claude, Gemini and the custom shopping agents underneath them.

CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
or ask your AI app
Company
About xpayAgency PartnersGitHubDiscordllms.txt
DevelopersDocumentationAPI ReferenceSDKs & LibrariesQuickstart GuideOpenAPI Spec
Stay Updated
Occasional product updates and agent-readiness playbooks from xpay (Agentically Inc.) — typically a couple of emails a month. Double opt-in: we email you a link to confirm before sending anything, and every email has one-click unsubscribe.
Social
  • For Publishers
    • News
    • Finance
    • Dev / Tech
    • Travel
    • View all verticals
  • Agent Feed
    • AI Search Engines
    • RAG Builders
    • Browser Agents
    • Vertical Research
    • Browse full catalog
  • Agent-Ready Index
    • SaaS Pricing Database
    • Agent-Ready SaaS Index
    • Verified band
    • AI & ML
    • Sales & CRM
  • Products
    • Pricing Widget
    • Monetize MCP Server
    • Paywall
    • Smart Proxy
    • Monetize AI Agents
    • xpay x402 Facilitator
  • Agentic Economy
    • Timeline
    • Resources
    • Manifesto
    • Stack
  • Agentic Commerce
    • Get listed
    • ChatGPT Ads
    • How ChatGPT Ads work
    • ChatGPT Ads · Apparel
    • ChatGPT Ads · Health & Beauty
    • xpay Listings · Amazon + Google
    • Pricing
    • Free audit
    • Shopify
    • WooCommerce
    • Apparel & Accessories
    • Health & Beauty
    • Overview
  • Commerce Index
    • Shopify apps directory
    • Agentic Commerce Ready Index
    • Methodology
    • Pet brands · WooCommerce
    • Pet brands · Shopify
  • Marketplace
    • 🛍️ xpay.deals — agentic storefront for deals
  • Protocols
    • Overview
    • x402
    • MPP
    • UCP
    • ACP
    • AP2
    • TAP
    • A2A
  • Agent Frameworks
    • Overview
    • LangChain
    • CrewAI
    • Claude MCP
    • AutoGPT
    • LangChain vs Mastra
    • LangGraph vs Pydantic AI
  • Company
    • About xpay
    • Blog
    • Docs
    • GitHub
  • Free prompts
    • Ecommerce prompts
    • Email marketing prompts
    • Product description prompts
    • Facebook ad prompts
    • Skincare prompts
    • Supplement prompts
    • Wine prompts
    • Electronics prompts

© 2025 Agentically Inc. All rights reserved.
Privacy PolicyTerms of UseAcceptable Use Policy