LatinLock vs modlet: Block PO Box & Lockers
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for LatinLock, Oct 31, 2026 for modlet.
The short answer
- On the Shopify App Store: LatinLock 5.0 from 1 reviews and modlet 5.0 from 2 reviews.
- Only modlet lists a free plan. Paid plans start at $5/month for LatinLock and $7.99/month for modlet.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Basic
- · Control of allowed characters
- · Customizable messages
- · Unlimited number of validations
Free
- · Address Simulator & Testing Tool
- · Block PO Boxes globally (Instant setup)
- · Native & Secure Checkout Validation
- · Up to 250 Store Orders per Month
Pro
- · Country & Region Whitelisting
- · Custom Error Messages & Translations
- · Granular Pattern Rules
- · Product Exemptions
- · Shipping Method Filtering
- · Unlimited Orders & Address Validations
Enterprise
- · 1-on-1 Workflow & Strategy Configuration
- · Dedicated Technical Account Manager
- · Guaranteed Custom SLA & Compliance Help
- · On-Demand Custom Data Exports & Reports
- · Priority Custom Feature Development
- · White-Glove Setup & Dedicated Onboarding
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSome shipping carriers and international fulfillment centers reject orders if the shipping address contains non-Latin or non-English characters. This leads to order delays, cancellations, or refunds, costing your store revenue and customer trust. LatinLock automatically validates shipping addresses at checkout and blocks unsupported characters before the order is placed.
Protect your shipping margins with reliable, global PO Box blocking. Built natively into Shopify Checkout, it physically blocks checkout completion for restricted addresses—ensuring 100% reliability. Why offer a generous free tier? Built by a veteran cloud architect, our highly efficient infrastructure keeps costs low, and we love helping new stores get off the ground.
- Buyers are notified of and shown any invalid characters that need to be removed
- Addresses containing Invalid characters cannot proceed through checkout
- Merchants can add any symbols or characters they wish to allow in the address
- Block PO Boxes, Lockers, and Military Addresses to prevent failed deliveries.
- Stop expensive UPS/FedEx carrier return fees instantly.
- Native Shopify Checkout integration—unhackable with zero theme code.
- Exempt specific countries or shipping methods from blocking rules.
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 |  LatinLock |  modlet |
|---|---|---|
| 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 | LatinLock | modlet |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 1 | 2(ahead) |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
LatinLock and modlet: common questions
- Is LatinLock or modlet cheaper?
- Only modlet lists a free plan. Paid plans start at $5/month for LatinLock and $7.99/month for modlet. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, LatinLock or modlet?
- On the Shopify App Store: LatinLock 5.0 from 1 reviews and modlet 5.0 from 2 reviews.
- 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 Oct 13, 2026 for LatinLock, Oct 31, 2026 for modlet; 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 Oct 13, 2026 for LatinLock, Oct 31, 2026 for modlet. 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.