PO Box Shipping Carrier Guard vs Vexio Address Guard: Validator
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 11, 2026.
The short answer
- Only Vexio Address Guard lists a free plan.
- PO Box Shipping Carrier Guard lists 1 features Vexio Address Guard’s listing doesn’t mention, including Shipping rules.
Head to head
Free
- · 200 server checks per month
- · Analytics with CSV export
- · Block countries, regions, postcodes
- · Checkout address validation rules
- · PO box, junk and phone checks
- · Up to 3 ship-to countries
Starter
- · 2,000 server checks per month
- · Everything in Free
- · Major-city postcode check
- · Phone line type: mobile or fixed
- · Postcode and locality databases
- · Rules per market with market packs
Growth
- · 10,000 server checks per month
- · All ship-to countries
- · Everything in Starter
- · Flow trigger, order notes, bulk re-check
- · One-click and automatic correction
- · Post-order checks: tag, hold, email
Scale
- · Activity log kept for 1 year
- · Check API keys for your systems
- · Everything in Growth
- · Live phone lookup (your provider)
- · Unlimited server checks
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureUPS, FedEx, DHL and other couriers can't deliver to PO boxes, so those orders bounce back or need a costly fix. PO Box Shipping Carrier Guard checks the address at checkout and asks for a street address when the chosen shipping option can't reach a PO box. Choose which of your shipping options go by mail, like USPS, and customers can still use a PO box with those. Prefer no PO boxes at all? Block them everywhere.
Address Guard checks delivery addresses and phone numbers in checkout and after the order. Rules run inside Shopify and block clearly wrong input such as PO boxes, junk text, blocked regions and invalid phones. Reference data covers Central and Eastern Europe and Ukraine. It works next to Shopify's own validation. Addresses and phones are checked and never stored.
- Blocks PO box addresses at checkout for courier shipping options
- Allows PO boxes with USPS and other mail services you choose
- Finds your shipping rates and suggests which ones ship by mail
- Block all PO boxes or allow them everywhere with one setting
- Checkout rules that run inside Shopify and block clearly wrong input
- Blocked countries, regions and postcode ranges
- PO box, junk and test-input detection in many languages
- Phone checks: required, valid for the country, mobile-only option
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 | ||
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | Not enough data | 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 | ||
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | ||
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $9.99/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | Not published | 4 |
Listing
| Measure | ||
|---|---|---|
| Shopify category rank | Not enough data | #1085 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 11, 2026 | Oct 30, 2026 |
| Languages | 1 | 1 |
| Developer | David Warwick | Vexio |
FAQ
PO Box Shipping Carrier Guard and Vexio Address Guard: common questions
- Is PO Box Shipping Carrier Guard or Vexio Address Guard cheaper?
- Only Vexio Address Guard lists a free plan. 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?
- PO Box Shipping Carrier Guard lists 1 the others don’t mention, such as Shipping rules. Vexio Address Guard lists 1 the others don’t mention, such as Multi-language. 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 11, 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 11, 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.