AddressPill Address Validation vs SafeShip PO Box Blocker
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 2, 2026 for AddressPill Address Validation, Oct 13, 2026 for SafeShip PO Box Blocker.
The short answer
- Only AddressPill Address Validation lists a free plan.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Starter
- · Detect missing house numbers
- · Free forever
- · In-checkout validation
- · Non-blocking checkout validation
- · ZIP & country format checks
Business
- · Address deliverability checks
- · Automatic Shopify order updates
- · Customer self-correction
- · Everything in Starter
- · Post-checkout address validation
- · Real address verification
Full Access
- · 2 months free with yearly billing
- · Costs less than a coffee per month
- · Customizable block patterns
- · Multi-language suppo
- · No more failed delivery charges
- · Unlimited usage
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAddress validation for shops shipping to Germany, Austria, Switzerland, the US, UK, Australia, Canada and beyond. The address validator warns or blocks missing house numbers, PO boxes, Packstations, special characters and email typos in checkout. After purchase, Google Address Validation provides shipping address verification and address correction.
Some carriers (e.g. Fedex) charge extra fees or refuse delivery to PO Boxes. SafeShip validates customer addresses at checkout and blocks orders with PO Box addresses before payment. This prevents failed deliveries, avoids carrier surcharges, and saves you from manually reviewing orders. Customers see a clear message explaining why their address cannot be used, reducing support requests.
- In-checkout address validation
- Post-checkout address fixing
- Customer self-correction flow
- Reduce failed deliveries and returns
- Real-time address validation catches PO Boxes before orders enter your system
- Works automatically in the background, no manual order review required
- Compatible with all Shopify themes and checkout configurations
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 |  AddressPill Address Validation |  SafeShip PO Box Blocker |
|---|---|---|
| Detected stores | Not published | Not published |
| 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 | AddressPill Address Validation | SafeShip PO Box Blocker |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 6 | 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 | AddressPill Address Validation | SafeShip PO Box Blocker |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $4.99/month |
| Longest free trial | Not listed | 7 days |
| Plans listed | 2 | 1 |
Listing
| Measure | AddressPill Address Validation | SafeShip PO Box Blocker |
|---|---|---|
| Shopify category rank | #38(ahead) | #277 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 19, 2026 | Dec 16, 2025 |
| Languages | 1 | 1 |
| Developer | trinker media gmbh | Farpoint Digital LLC |
FAQ
AddressPill Address Validation and SafeShip PO Box Blocker: common questions
- Is AddressPill Address Validation or SafeShip PO Box Blocker cheaper?
- Only AddressPill Address Validation 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.
- 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 2, 2026 for AddressPill Address Validation, Oct 13, 2026 for SafeShip PO Box Blocker; 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 2, 2026 for AddressPill Address Validation, Oct 13, 2026 for SafeShip PO Box Blocker. 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.