---
title: "Ultimate Postal Code Blocker Shopify App Profile"
description: "Stop expensive shipping mistakes before they start. Ultimate Postal Code Blocker scans the address field in real time and rejects high-cost or undeliverable postal codes—no Carrier Calculated Shipping required. Compatible with all store plans, it handles thousands of codes or more, providing real-time protection. Reduce losses, protect your brand, and navigate tough areas effortlessly."
canonical_url: "https://shoplist.co/shopify-apps/ultimate-postal-code-blocker"
markdown_url: "https://shoplist.co/shopify-apps/ultimate-postal-code-blocker.md"
last_updated: "2026-10-24"
entity_type: "shopify_app"
slug: "ultimate-postal-code-blocker"
source: "public Shopify app profile allowlist"
---

# Ultimate Postal Code Blocker Shopify App Profile

> Stop expensive shipping mistakes before they start. Ultimate Postal Code Blocker scans the address field in real time and rejects high-cost or undeliverable postal codes—no Carrier Calculated Shipping required. Compatible with all store plans, it handles thousands of codes or more, providing real-time protection. Reduce losses, protect your brand, and navigate tough areas effortlessly.

## Quick answer
Ultimate Postal Code 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: Ultimate Postal Code Blocker
- Monitoring status: Storefront detection limited
- Developer: MSM TECHNOLOGIES
- Developer profile: https://shoplist.co/app-developers/msm-technologies
- Shopify App Store URL: https://apps.shopify.com/ultimate-zip-post-code-blocker
- Website: https://msmtech.ca
- Launch date: November 25, 2024
- Shoplist category: Shipping & Fulfillment
- Rating: 4.7
- Review count: 13
- Free trial signal: Yes

## Pricing summary
Pro Monthly Plan: $8.99/month; Pro Yearly Plan: $96.99/year

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.


## Shopify App Store categories
- Checkout - Other

## Data note
Profile updated: October 24, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-10-30 16:08:01.49876\+00
Detection metrics refreshed: 2026-10-30 14:53:23.662062\+00
Public app evidence date: 2026-10-24 13:49:27.157798\+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/ultimate-postal-code-blocker)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)