Featured images gallery
Block repeat fraudsters, chargebacks, and serial returners with the community-powered blocklist.
Block repeat fraudsters before they place another order using the community-powered blocklist shared across stores. When one merchant flags a fraudster, all Blox stores are protected. Blox automatically deduplicates and blocks repeat offenders by email, phone, address, or payment method. Stop chargebacks, refund abusers, and serial returners before they place another order. Every block you create protects the entire merchant community. No complex setup. No hidden costs.
- Auto-hold or cancel high-risk orders before fulfillment
- Flag customers already blocked by other stores in the network
- Deduplicate customers using multiple emails or accounts
- Block serial returners, refund abusers, and repeat chargeback customers
- Simple rules engine—no AI black box, no per-transaction fees
Languages
English
Works with
- Checkout
- Shopify Admin
Categories
Fraud types
Prevention tools
Pricing
Choose the plan that best fits your business.
Free Dev Plan
Free
Features
- Free for development stores
Standard
$19 / month
Features
- Stop fraud before fulfillment
- Block or hold orders from any customer
- Discover your worst customers
- Cluster customers with multiple accounts
- Auto-block known fraudulent customers
- Up to 1000 orders per month
30-day free trial
Unlimited
$99 / month
Features
- Stop fraud before fulfillment
- Block or hold orders from any customer
- Discover your worst customers
- Cluster customers with multiple accounts
- Auto-block known fraudulent customers
- Unlimited customers & orders
30-day free trial
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.
Reviews (19)
Great idea for sharing blacklist across all stores using them. Hope more people use them ASAP.
However need these improvements:
1. to allow adding of customers to the blocklist via tags.
(Update: they implemented this, working)
2. Prevent blocked customers from checking out in the first place, not cancel after they paid.
(In progress)
Unfortunately, we're still getting chargebacks due to orders being flagged high risk but were not put on hold by Blox. Thanks.
Hi there! This appears to be a simple setup issue. We've reached out to help but haven't heard back. Please let us know if we can help.
Great experience for us so far. Filled a gap we had in our current tooling, definitely a huge recommended essential item for back office, fraud prevention for anyone. Part of my personal day 1 installs here now.
Support
App support provided by Blox.
Resources
Launched
February 24, 2025
Data access
This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .
View customer data:
Sensitive data, device and activity data
-
Sensitive data
Name, email address, phone number, physical address
-
Device and activity data
Geolocation, IP address, browser and operating system
View staff and contributor data:
Store owner
-
Store owner
Name, email address, phone number, physical address
View and edit store data:
Customers, products, orders, discounts
-
View customers
Customer data
-
View products
Inventory, products, collections
-
Edit orders
Assigned fulfillment, draft orders, merchant managed fulfillment, all order history, returns, third-party fulfillment
-
View discounts
Discount codes and promotions
-
View other data
Locations, Shopify Markets settings
More apps like this
Meets our highest standards for performance, design, and integration. Learn moreOpens in new window
