The 10 Best Block Customer Apps for Shopify
The top 10 apps merchants see when they search the Shopify App Store for block customer, in the exact order the store ranks them. Only Shopify's organic ranking is shown, never sponsored ads.
Updated October 10, 2026 · Organic rankingShopify has no way to bar a customer. Its own guidance on managing customers covers deleting, tagging, editing, merging and erasing them, and nothing that prevents somebody ordering again. The one native control that sounds like it might is about signing in rather than buying: an account can be disabled, which stops them logging in and says nothing about whether they can check out.
What does exist is a validation function, which runs on Shopify's own servers, can stop a checkout when your rules are not met, and cannot be bypassed from the browser. It can see the email, the phone number and the addresses being used. That is the mechanism every app here is built on, and it is worth knowing because it also defines the limits: a blocklist works on the details somebody chooses to type, and those are the easiest thing in the world to change.
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1
Blocky Fraud Filter IP Blocker
Block customer: Bot protection, country blocker & bot blocker
Built for Shopify -
2
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3
HD : Block Customer & Returns
Stop unwanted returns & block bad customers at checkout.
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4
Blox: Block Customer Blacklist
Block bad customers and chargeback abusers with the blacklist.
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5
Shopify Checkout Blocks
Customize your Checkout, Thank you and Order status pages
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6
Cart Lock:Block Checkout Rules
Block orders by amount, quantity, discount, customer, shipping
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7
MIDA Replay, Heatmap & Insight
Fix lost sales: live replays, revenue heatmaps & AI analytics
Built for Shopify -
8
Checkout Blocks & Customizer
Customize your checkout using upsell blocks, rules & forms.
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9
Fraud Falcon ‑ Block Blacklist
Block customers & blacklist fraud buyers to stop chargebacks
Built for Shopify -
10
Blockify Checkout Customizer
Checkout rules, checkout customizer and discounts to boost AOV
Built for Shopify
Built for ShopifyCompare the top 3 head-to-head
What to look for in a Block Customer app
- Be clear what you are blocking
- An email address, a phone number, a delivery address and a network are different things with very different accuracy. Blocking an address stops parcels going to a place; blocking an email stops one identity. Neither stops a determined person, and the more aggressive the rule the more legitimate customers it catches.
- Ask about guest checkout
- Much of the advice about disabling accounts assumes people log in, and a great many buyers do not. Ask the vendor directly whether their rules apply to a guest using the same details, because if the answer is no then the feature does not do what you wanted.
- What the blocked person sees
- Somebody is going to be stopped by mistake, and what happens then decides whether you hear about it or simply lose them. Look for a message you can word yourself and a log of what was refused, because a silent failure at checkout is indistinguishable from a broken store.
Frequently asked questions
Which is the best Block Customer app for Shopify?
Based on the Shopify App Store's own organic ranking for "block customer", Blocky Fraud Filter IP Blocker currently holds the #1 spot, with a 4.7 star rating across 357 reviews. The best choice for your store still depends on your requirements, so compare the top results above.
How is this ranking determined?
We record the organic results merchants actually see when searching the Shopify App Store for "block customer", refreshed daily. Shopify's own sponsored ("Ad") results are excluded, so positions reflect its real search ranking rather than paid promotion. Source: the Shopify App Store search results for "block customer", you can verify the current ranking there yourself.
Which Block Customer apps are Built for Shopify?
5 of the top 10 block customer apps hold the Built for Shopify badge: Blocky Fraud Filter IP Blocker, Chargeback Blacklist, MIDA Replay, Heatmap & Insight, Fraud Falcon ‑ Block Blacklist, Blockify Checkout Customizer.
What does the Built for Shopify badge mean?
Built for Shopify
Built for Shopify is the highest level of recognition Shopify awards an app. To earn
the badge, an app must meet Shopify's standards for safety, performance, ease of use,
and proven usefulness: it cannot slow down the admin, storefront, or checkout, must
integrate seamlessly into the Shopify admin, and must demonstrate quality through
installs, reviews, and ratings over time. When comparing similar apps, preferring
ones with the badge is a safe default.
Learn more about the Built for Shopify badge →
As of October 10, 2026, the top-ranked block customer app on the Shopify App Store is Blocky Fraud Filter IP Blocker, with a 4.7 star rating across 357 reviews. 5 of the top 10 carry the Built for Shopify badge, and the average rating is 4.8 stars across 1,630 reviews.
Related keyword rankings
Rank higher on the Shopify App Store
Rankbase helps Shopify app developers track keyword positions, analyze install click data, and optimize app listings to rank higher in the Shopify App Store.
Explore Rankbase →Built by Craftshift
Rankbase is made by Craftshift, a Shopify Partner building apps for product images, variants, and bulk catalog work. We built Rankbase to track the App Store rankings of our own apps first, then opened it to other developers, and this directory grew out of that work. The rankings on these pages are Shopify's own organic search results; we never edit them, including for our own apps.
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CS - Smart Bulk Image Upload
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Link products as variants w/ combined listings & color swatch
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