Ultimate PO Box Blocker

Shopify shipping rates app by MSM TECHNOLOGIES·Stop PO Box orders at checkout for successful deliveries and lower shipping cost. 1-click setup.

Snapshot

5.00(7 reviews)#116of 479 inShipping rates

Ongoing.AI tracks Ultimate PO Box Blocker daily — category rank, keyword positions in App Store search, install footprint, listing changes, and reviewer sentiment — back to when we first observed the listing.

CategoriesShipping rates

Rating

5.00

7 reviews

Pricing

From $8/mo

free_trial

Built for Shopify

No

Years live

2

launched Oct 10, 2023

Last updated

Jul 4, 2026

Shopify listing

Category rank over time

Where Ultimate PO Box Blocker sits day-by-day in Shipping rates.

Position across the Shipping rates page, snapshot daily. Lower is better — the Y axis is inverted so the strongest ranks sit at the top of the chart. Open the full Shipping rates leaderboard →

#41#50#58#67#75May 28May 31Jun 4Jun 7Jun 11Ultimate PO Box Blocker · #60Chronopost Official · #59Shipping calculator · #61
Best position observed: #60. Ultimate PO Box Blocker climbed 4 positions over the window. Greyed lines: the apps sitting immediately around it on the latest snapshot.

Catalog position

Where Ultimate PO Box Blocker sits in the App Store.

Rank and percentile inside the Shipping rates category — the competitive shape of the niche around this app.

Rank in Shipping rates

#116

of 479 active apps

Review count percentile

74th

vs category siblings

Rating percentile

77th

vs category siblings

Years on App Store

2

since 2023

Listing change cadence

What Ultimate PO Box Blocker has changed lately.

Every pricing tweak, tagline refresh, and Shopify-side listing ping. Captured from Ongoing.AI’s per-scrape diff log — the cadence and the content of changes, in one strip.

Listing changes · last 21 days+17shopify_lastmod: 2026-06-11 → 2026-06-14shopify_lastmod: 2026-06-14 → 2026-06-16shopify_lastmod: 2026-06-16 → 2026-06-17shopify_lastmod: 2026-06-17 → 2026-06-20shopify_lastmod: 2026-06-20 → 2026-06-21shopify_lastmod: 2026-06-21 → 2026-06-22shopify_lastmod: 2026-06-22 → 2026-06-27shopify_lastmod: 2026-06-27 → 2026-06-28shopify_lastmod: 2026-06-28 → 2026-06-30shopify_lastmod: 2026-06-30 → 2026-07-01shopify_lastmod: 2026-07-01 → 2026-07-03shopify_lastmod: 2026-07-03 → 2026-07-04Jun 14, 26Jun 24, 26Jul 5, 26

Shopify Lastmod · Jul 5

2026-07-03 → 2026-07-04

Shopify Lastmod · Jul 4

2026-07-01 → 2026-07-03

Shopify Lastmod · Jul 2

2026-06-30 → 2026-07-01

PricingIdentity & listingCadence

Reviews

What merchants are saying

5.00(7 reviews)
  • 100%positive8
  • 0%neutral0
  • 0%negative0

Top themes

    What merchants praise

    “This app is very easy to set up and offers a lot of options to block shipments to PO Boxes. It has an option for blocking by product, but did not have an option for blocking by collections. When I asked Jason about this, I was amazed that in a couple of weeks he added a collections option to this app, incredible customer service!! It works perfect!”
    Ridgedale Orchard & Vineyard · 5★ · 2025-12-01

    Plans

    Ultimate PO Box Blocker pricing tiers.

    Pro Monthly Plan

    $8.99/month

    • Block PO Box orders in real-time
    • Setup in 1 click
    • Customize your PO Box message
    • Integrate Seamlessly with Shopify
    • Advanced Settings at your fingertips
    • Anytime Support

    Pro Yearly Plan

    $96.99/year

    • Block PO Box orders in real-time
    • Setup in 1 click
    • Customize your PO Box message
    • Integrate Seamlessly with Shopify
    • Advanced Settings at your fingertips
    • Anytime Support
    • Save 10% by paying yearly

    Capabilities

    What Ultimate PO Box Blocker can do.

    The 13 capabilities Ultimate PO Box Blocker lists across its category, in Shopify’s own taxonomy. Pulled directly from the App Store listing.

    Rate calculation

    5
    • Carrier-based
    • Customer-based
    • ZIP/post code
    • Multi-zone
    • Multi-origin

    Customization

    8
    • Custom notifications
    • PO Box restrictions
    • Address validation
    • Rename options
    • Hide rates
    • Reorder rates
    • Multi-language
    • Custom rules

    FAQ

    Ultimate PO Box Blocker — frequently asked questions.

    What is Ultimate PO Box Blocker on Shopify?
    Ultimate PO Box Blocker is a Shopify app in the Shipping rates category. If you're a merchant tired of dealing with lost packages, failed deliveries, or the extra costs associated with reshipping, then Ultimate PO Box Blocker is for you. Whether you're a small business owner or run a large e-commerce operation, our app is designed to make your shipping process more efficient and reliable. The app needs no manual setup for seamless integration but offers advanced customization options. Take control of your shipping process today. It averages 5.00 out of 5 across 7 merchant reviews on the Shopify App Store.
    How much does Ultimate PO Box Blocker cost?
    Ultimate PO Box Blocker has 2 paid plans on the Shopify App Store, starting at $8/month and going up to $96.99/month.
    Is Ultimate PO Box Blocker free?
    No, Ultimate PO Box Blocker is a paid Shopify app. Plans start at $8/month on the Shopify App Store.
    When was Ultimate PO Box Blocker launched?
    Ultimate PO Box Blocker launched on October 10, 2023 — over 2 years on the Shopify App Store. In that time it has gathered 7 merchant reviews.
    Is Ultimate PO Box Blocker Built for Shopify?
    Ultimate PO Box Blocker does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.
    What are the best Ultimate PO Box Blocker alternatives?
    Merchants commonly compare Ultimate PO Box Blocker with ShipX, Essent Estimated Delivery Date, PH MultiCarrier Shipping Label, and PH Ship Rate & Track for FedEx. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.

    Alternatives

    Apps merchants pick instead.

    Logbase

    ShipX ‑ Shipping Rates & Rules

    5.00★1,200

    Essential Apps

    Essent Estimated Delivery Date

    5.00★857

    PluginHive

    PH MultiCarrier Shipping Label

    4.90★622

    PluginHive

    PH Ship Rate & Track for FedEx

    4.90★609
    Browse more inAll Shipping rates apps

    Methodology

    Where the numbers come from.

    Ratings, review counts, pricing tiers, “Built for Shopify”, launch date, and category memberships come from the live Shopify App Store listing — refreshed daily by Ongoing.AI’s crawler. The review-count trajectory is the diff between today’s snapshot and snapshots from 7 and 28 days ago. Topic counts and sentiment come from the review corpus, topic-tagged with Claude. Install footprint is observed via Ongoing.AI’s tech-detection pass against actively-tracked Shopify storefronts. Catalog position is computed at snapshot time against every active app sharing the primary category. Snapshot generated .

    Find every brand running Ultimate PO Box Blocker.

    Ongoing.AI tracks every Shopify brand’s app stack daily. Pull the full install list, filter by vertical or geography, and catch the moment merchants install — or churn off.

    Track Ultimate PO Box Blocker — free Start free

    Prefer the source? View Ultimate PO Box Blocker on the Shopify App Store ↗