DS Address Validation / Block vs FP1 ‑ Postcode Shipping Guard
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for DS Address Validation / Block, Oct 14, 2026 for FP1.
The short answer
- Both list a free plan. Paid plans start at $5.99/month for DS Address Validation / Block and $5.99/month for FP1.
- DS Address Validation / Block lists 13 features FP1’s listing doesn’t mention, including Barcode scanning, Branded tracking page, Bulk printing.
Head to head
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Testing Plan
- · Block PO box Address
- · Cart conditional validation
- · Development store only
- · Enter Devesha as First name at checkout
- · Live Chat/Email Support.
- · Minimum & Maximum Character Limit
Shopify Basic
- · 3 Days Trial.
- · All Features Included.
- · Cart Attribute Validation
- · Checkout Conditional Validation.
- · Detect missing house numbers
- · Live Chat/Email Support.
Shopify Grow
- · 3 Days Trial.
- · All Features Included.
- · Cart Attribute Validation
- · Checkout Conditional Validation.
- · Detect missing house numbers
- · Live Chat/Email Support.
Advanced / Plus
- · 3 Days Trial.
- · All Features Included.
- · Cart Attribute Validation
- · Checkout Conditional Validation.
- · Detect missing house numbers
- · Live Chat/Email Support.
Free
- · 1 postcode rule
- · Exact or prefix blocking
- · Optional cart notice
Unlimited
- · Exact or prefix blocking
- · Optional cart notice
- · Unlimited postcode rules
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureEasily validate shipping addresses with Minimum & Maximum character limits, custom regex matching, and restricted character checks. establish minimum and maximum order limits. Define thresholds for price, quantity items. Validate city-based zip codes, postal codes. Limit orders by city, province, or zip code. Set custom error messages per field in multiple store languages.
FP1 - Postcode Shipping Guard blocks restricted Postcode, Postal Code, and ZIP Code areas without changing your Shopify shipping zones. Block exact codes, use * to cover wider areas (such as SW1A*), or enter postcode ranges using a dash (such as 1000-1999). When a checkout address matches a saved rule, available shipping methods are removed until the postcode changes.
- Detect missing house numbers, Missing apartment number and Block PO box Address.
- Block Specific Zip Code, Non-Latin, Extra White Space, Required Shipping Fields.
- Conditional Cart, Product, Address Validation with Multi-Language Error Message
- Validate Local Delivery Zip Code with Shipping zip code at checkout.
- Block restricted Postcode/Postal/ZIP codes inside your shipping zones.
- Block exact codes, or block a whole area using * (for example, SW1A*).
- Apply rules globally or restrict a rule to a specific country.
- Manage rules in the app—no editing shipping profiles or zones required.
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 |  DS Address Validation / Block |  FP1 |
|---|---|---|
| Detected stores | 1 | 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 | Food, Beverages & Tobacco | Not published |
| Top store countries | Germany | Not published |
Reviews
| Measure | DS Address Validation / Block | FP1 |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 31 | 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 | DS Address Validation / Block | FP1 |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $5.99/month | $5.99/month |
| Longest free trial | 3 days | Not listed |
| Plans listed | 4 | 2 |
Listing
| Measure | DS Address Validation / Block | FP1 |
|---|---|---|
| Shopify category rank | #17(ahead) | #292 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Sep 16, 2024 | Feb 10, 2026 |
| Languages | 1 | 1 |
| Developer | Devesha Solution | Fixpoint One |
FAQ
DS Address Validation / Block and FP1: common questions
- Is DS Address Validation / Block or FP1 cheaper?
- Both list a free plan. Paid plans start at $5.99/month for DS Address Validation / Block and $5.99/month for FP1. 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?
- DS Address Validation / Block lists 13 the others don’t mention, such as Barcode scanning, Branded tracking page, Bulk printing, Carrier selection. FP1 lists 1 the others don’t mention, such as Shipping rules. 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 8, 2026 for DS Address Validation / Block, Oct 14, 2026 for FP1; 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 8, 2026 for DS Address Validation / Block, Oct 14, 2026 for FP1. 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.