---
title: "CartShield: Discount Blocker Shopify App Profile"
description: "CartShield lets you control which discount codes are accepted at checkout and on products. Create rules to block all codes, specific codes, or codes based on products, collections, customer tags, or cart total. The Allow List lets you whitelist approved codes and block everything else. Smart Discounts apply discounts only to full-price items, skipping products already on sale. Every rule shows a custom error message to customers. Powered by Shopify Functions for instant performance."
canonical_url: "https://shoplist.co/shopify-apps/cartshield-discount-blocker"
markdown_url: "https://shoplist.co/shopify-apps/cartshield-discount-blocker.md"
last_updated: "2026-11-12"
entity_type: "shopify_app"
slug: "cartshield-discount-blocker"
source: "public Shopify app profile allowlist"
---

# CartShield: Discount Blocker Shopify App Profile

> CartShield lets you control which discount codes are accepted at checkout and on products. Create rules to block all codes, specific codes, or codes based on products, collections, customer tags, or cart total. The Allow List lets you whitelist approved codes and block everything else. Smart Discounts apply discounts only to full-price items, skipping products already on sale. Every rule shows a custom error message to customers. Powered by Shopify Functions for instant performance.

## Quick answer
CartShield: Discount Blocker has 0 detected stores in Shoplist. This Markdown profile displays 0 public brand examples; it is not a complete customer list.

## Key facts
- Name: CartShield: Discount Blocker
- Monitoring status: First-adopter watch
- Developer: Apps Developer
- Developer profile: https://shoplist.co/app-developers/apps-developer20
- Shopify App Store URL: https://apps.shopify.com/cartshield-discount-blocker
- Launch date: November 12, 2026
- Shoplist category: Collections & Merchandising
- Free plan signal: Yes
- Free trial signal: Yes

## Pricing summary
Free: Free; Basc: $4.99/month; Pro: $12.99/month; Lifetime: $249.99 one-time charge

Shoplist has not yet found reliable public storefront evidence connecting a Shopify store to this app. This does not mean the app has no users. Some apps are new, admin-only, server-side, theme-independent, or otherwise difficult to detect from public storefront signals.


## App Signals
As of November 12, 2026:

- Stores running it: 0, 0.0% of the stores Shoplist tracks
- Store movement, last 28 days: not enough observed days yet
- Primary App Store category: Discounts
- Listing reviews: 0

## Public callouts
- Block discount codes by product, collection, customer tag, or cart total
- Allow List: whitelist specific codes and block all others at checkout
- Smart Discounts: apply discounts only to full-price items, not sale items
- Custom error messages per rule shown instantly to customers at checkout
- Activity Log to track every blocked code attempt and identify abuse
## Shopify App Store categories
- Discounts

## Data note
Profile updated: November 12, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-11-13 08:07:01.38266\+00
Detection metrics refreshed: 2026-11-12 18:45:48.196093\+00
This generated Markdown profile intentionally exposes only public, stable app-profile fields and a small public app-stack sample from Shoplist. It excludes private contact data, people data, internal scores, crawl provenance, full datasets, and unstable operational fields.

## Related links
- [HTML app profile](https://shoplist.co/shopify-apps/cartshield-discount-blocker)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)