Blox: Chargeback Blacklist

Blox: Chargeback Blacklist

Pricing
Free plan available. Free trial available.
Rating
4.6 (15)
Developer
Blox

Block fraud and hold chargebacks using our community built blocklist.

When one store flags fraud, all stores are protected. A merchant-powered blocklist that turns every block into shared protection against the internet’s worst fraudsters.

When one store flags fraud, all stores are protected. A merchant-powered blocklist that turns every block into shared protection against the internet’s worst fraudsters. more
  • Any customer blocked on another store is flagged for you to review.
  • Auto group customers with multiple accounts (e.g. different emails).
  • Easily block any customer without needing complex fraud rules.
  • Hold customers who have issued chargebacks on other stores.

Languages

English

Works with

Pricing

Free Dev Plan

Free

Features

  • Free for development stores

Everything

$4.99 / month

Features

  • Auto block blacklisted customers
  • Block or hold orders from any customer
  • Discover your worst customers
  • Cluster customers with multiple accounts
  • Unlimited customers & orders

30-day free trial

Advanced

$12.99 / month

Features

  • For Shopify Advanced merchants
  • All features from Everything

30-day free trial

Plus

$49 / month

Features

  • For Shopify Plus merchants
  • All features from Everything

30-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.

Reviews (15)

Overall rating
4.6
Counts per rating level
  • 87% of ratings are 5 stars
  • 0% of ratings are 4 stars
  • 7% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 7% of ratings are 1 stars
May 28, 2026

Unfortunately, we're still getting chargebacks due to orders being flagged high risk but were not put on hold by Blox. Thanks.

Qhemet Biologics
United States
3 months using the app
Blox replied May 29, 2026

We're disappointed to see that your experience with Blox hasn't been ideal. While we can't guarantee a 100% reduction in chargebacks, we want to make sure we help as much as possible and we've reached out directly to help.

March 30, 2026

The helpful insights are super easy to use for our customer support agents, and this gave us a great grip on fraudulent orders. We were able to literally get rid of all our return and replacement abusers.

DermStreet
United States
About 2 months using the app
Edited June 9, 2026

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)

takeitglobal
Malaysia
3 days using the app

Support

App support provided by Blox.

Developer

Blox

Denver, CO, US

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

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