BoxGuard: PO Box Blocker vs PO Box Blocker Pro
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 3, 2026.
The short answer
- Only BoxGuard lists a free plan. Paid plans start at $9.99/month for BoxGuard and $2.99/month for PO Box Blocker Pro.
- BoxGuard lists 2 features PO Box Blocker Pro’s listing doesn’t mention, including Cart alerts, Checkout alerts.
Head to head
Free Plan
Pro Plan
Essential
- · Auto health checks & self-repair
- · Block addresses FedEx, UPS & DHL reject
- · Built-in address tester
- · Custom checkout message
- · One-click automatic setup
- · Real-Time PO Box Blocking
Pro
- · Everything in Essential
- · Exempt products, variants, collections
- · PO boxes, lockers, bags & APO/FPO
- · Priority email support
- · Rules by country, state, city & postal
- · Unlimited orders and validations
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCarriers like FedEx and UPS cannot deliver to PO Boxes, causing returned packages, reshipment expenses, and address correction penalties. BoxGuard validates shipping addresses directly within Shopify Checkout before payment is processed. You can restrict PO Boxes, military APO/FPO addresses, parcel lockers, and custom keywords, while setting custom error prompts.
PO Box Blocker Pro checks each shipping address at checkout and blocks addresses you can't deliver to before the order is placed. Block PO boxes, parcel lockers, locked bags, private bags and APO/FPO addresses, or restrict delivery by country, state, city or postal code. Allow chosen products, variants or collections to bypass the rules, set a custom checkout message, and test any address before going live.
- Block PO Boxes and parcel lockers in real time at checkout.
- Restrict military APO/FPO destinations and custom address keywords.
- Customize error messages to prompt buyers for a valid street address.
- Exempt trusted customer tags or apply rules to specific product tags.
- Automatically detects and blocks PO Box addresses during checkout.
- Allows merchants to exempt specific products from PO Box blocking.
- Customize the message shown when customers enter a PO Box address.
- Works seamlessly with Shopify Checkout and doesn’t require any theme edits.
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  PO Box Blocker Pro | |
|---|---|---|
| Detected stores | Not published | 2 |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | PO Box Blocker Pro | |
|---|---|---|
| App Store rating | Not published | 1.0 ★ |
| App Store reviews | Not published | 1 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | PO Box Blocker Pro | |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $9.99/month | $2.99/month(ahead) |
| Longest free trial | 7 days | 14 days |
| Plans listed | 2 | 2 |
Listing
| Measure | PO Box Blocker Pro | |
|---|---|---|
| Shopify category rank | Not enough data | #247 |
| Shopify App Charts | Not on this week’s charts | #3 in Shipping solutions - Other |
| Built for Shopify | No | No |
| Launched | Oct 31, 2026 | Jul 4, 2025 |
| Languages | 1 | 1 |
| Developer | Mad Syntax | Dev Kit |
FAQ
BoxGuard and PO Box Blocker Pro: common questions
- Is BoxGuard or PO Box Blocker Pro cheaper?
- Only BoxGuard lists a free plan. Paid plans start at $9.99/month for BoxGuard and $2.99/month for PO Box Blocker Pro. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- BoxGuard lists 2 the others don’t mention, such as Cart alerts, Checkout alerts. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 3, 2026; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 3, 2026. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.