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Block repeat fraudsters, serial returners, and refund abusers with the community-powered blocklist.
Blox stops repeat chargebacks, refund abuse, and serial returners before they place another order. When one merchant flags a fraudster, the community-powered blocklist protects all Blox stores automatically. Block customers by email, phone, address, or payment method. Deduplicate customers using multiple accounts. Auto-hold or cancel high-risk orders before fulfillment. No complex setup. No per-transaction fees. No AI black box. Every block you create protects the entire merchant community.
- Community blocklist automatically flags customers blocked by other stores
- Block serial returners, refund abusers, and repeat chargeback customers
- Auto-hold or cancel high-risk orders before fulfillment
- Deduplicate customers using multiple emails or accounts
- Simple rules engine—no AI black box, no per-transaction fees
Languages
English
Works with
- Shopify Admin
- Flows
- Fraud Assessments
- Fraud Filter
- Fraud Order Analytics
- Paypal Stripe
- Visitor Analytics
Categories
Fraud types
Prevention tools
Pricing
Choose the plan that best fits your business.
Free
Free
Features
- For stores under 100 orders per month
- Stop fraud before fulfillment
- Block or hold orders from any customer
- Discover your worst customers
- Cluster customers with multiple accounts
- Community blocklist auto-protection
Standard
$19 / month
Features
- Stop fraud before fulfillment
- Block or hold orders from any customer
- Discover your worst customers
- Cluster customers with multiple accounts
- Community blocklist auto-protection
- 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
- Community blocklist auto-protection
- Unlimited customers & orders
30-day free trial
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.
Reviews (22)
Blox has been great! Small businesses are often targeted by bad actors, and individually, we have limited resources to protect ourselves. Blox changes that by allowing businesses to work together, share information, and protect one another. The best part is that the network only gets stronger with every new store that joins. It's a fantastic concept that gives small businesses a collective voice and a stronger line of defense against fraud.
Thanks so much! We're so glad you're finding it valuable for your business.
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.
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
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Sensitive data
Name, email address, phone number, physical address
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Device and activity data
Geolocation, IP address, browser and operating system
View staff and contributor data:
Store owner
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Store owner
Name, email address, phone number, physical address
View and edit store data:
Customers, products, orders, discounts
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View customers
Customer data
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View products
Inventory, products, collections
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Edit orders
Assigned fulfillment, draft orders, merchant managed fulfillment, all order history, returns, third-party fulfillment
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View discounts
Discount codes and promotions
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View other data
Locations, Shopify Markets settings
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