Checkout Defense: Fake Emails vs Meridian Checkout Blocker
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 4, 2026 for Checkout Defense, Oct 24, 2026 for Meridian Checkout Blocker.
The short answer
- Both list a free plan. Paid plans start at $15/month for Checkout Defense and $3.99/month for Meridian Checkout Blocker.
Head to head
Free
- · Logs every order it would block
- · Upgrade to turn blocking on
- · Watch mode for fake checkout emails
Checkout Defense
Free
- · For development stores
Basic
- · Address & zip/postal code validation
- · Custom Email Domain Blocker
- · Disposable email validation
- · Modifiable Block/Warning Messages
- · Non-Contiguous US region Blocker
- · PO Box Blocker
Pro
- · Everything from Basic plan
- · Freight Forwarder Blocker
- · Landline phone detection
- · Military Address Blocker
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCut fake orders and promo abuse from disposable email addresses. Checkout Defense checks the email at checkout and signup against a list of 7,500+ disposable domains, refreshed weekly and checked inside the app with no third-party service. Turn each checkpoint on or off, add allow or block domains, and tag risky signups for review.
Checkout Shield eliminates costly delivery errors and customer service headaches by validating orders before checkout completes. By blocking PO boxes, disposable emails, and landline phone numbers, merchants instantly avoid return-to-sender fees and bounced communications. Our integration only collects accurate, actionable data.
- Block burner emails at checkout — cut fake orders and chargebacks.
- Stop promo and discount abuse — one burner can't burn an offer 50 times.
- Tag risky signups and newsletter subscribers automatically for review.
- 7,500+ disposable domains, refreshed weekly — checks run locally.
- Blocks customers from checkout on disposable email.
- Option to block PO boxes & validate address including postal/zip codes.
- Warns customers that shipping updates will not be received on landline phones.
- Allows freedom to enable / disable validations.
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 |  Checkout Defense |  Meridian Checkout 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 | Checkout Defense | Meridian Checkout Blocker |
|---|---|---|
| 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 | Checkout Defense | Meridian Checkout Blocker |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $15/month | $3.99/month(ahead) |
| Longest free trial | 7 days | 3 days |
| Plans listed | 2 | 3 |
Listing
| Measure | Checkout Defense | Meridian Checkout Blocker |
|---|---|---|
| Shopify category rank | Not enough data | #248 |
| Shopify App Charts | Not on this week’s charts | #13 on Pricing moves in Checkout - Other |
| Built for Shopify | No | No |
| Launched | Jun 26, 2026 | Aug 28, 2026 |
| Languages | 1 | 1 |
| Developer | TrackbackLabs | Meridian Code |
FAQ
Checkout Defense and Meridian Checkout Blocker: common questions
- Is Checkout Defense or Meridian Checkout Blocker cheaper?
- Both list a free plan. Paid plans start at $15/month for Checkout Defense and $3.99/month for Meridian Checkout Blocker. 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 4, 2026 for Checkout Defense, Oct 24, 2026 for Meridian Checkout 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 4, 2026 for Checkout Defense, Oct 24, 2026 for Meridian Checkout 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.