Blox vs NoFraud, Signifyd, and Blockify

Side-by-side

Blox vs NoFraud: no per-transaction fees

NoFraud (now operating as Wyllo) is built around screening each order and, on paid plans, guaranteeing eligible fraud chargebacks it approved. That model is usually priced as a percentage of revenue or a per-order fee, so cost scales with GMV.

Blox does not charge per-transaction fees. It is a flat monthly Shopify subscription. You block a customer once, identity linking covers the aliases, and you are not billed a cut of every order for using the blocklist.

Blox is built for the same person coming back, at a flat monthly price. NoFraud screens unknown checkouts and, on paid plans, guarantees the ones it passes.

Blox vs Signifyd: no AI black box

Signifyd is an AI fraud platform. It scores an order against a large identity network and returns approve or decline. Merchants who buy the guarantee shift chargeback liability for covered orders, but the primary control is a model, not a rule your team wrote.

Blox has no AI black box as the primary control. You block by email, phone, address, or payment. Accounts are grouped into one profile automatically. Holds and cancels follow simple rules you set. When another store on the network flags the same identity, you get a review signal you can act on, not an unexplained score.

Blox enforces a decision you have already made, or a network block, with a control you can explain. Signifyd scores orders with AI and can guarantee approved ones. A score can look fine on a new email; a blocklist still catches the person.

Blox vs Blockify: community blocklist

Blockify is commonly used as a fraud-filtering toolkit oriented around IP, bots, and country-style controls. It is closer to “score and filter the session” than “remember this customer forever across stores.”

Blox is a community customer blocklist. Every identifier a customer uses is grouped into one profile automatically. Blocking fraudsters, chargeback abusers, serial returners, and refund abusers takes one action, and that decision is shared across a merchant network. When one store flags fraud, others can be protected.

Blox is built for repeat chargebacks and multi-account abuse. Blockify is a filter-first app for bots, IP ranges, and country blocking. More detail: Blox vs Blockify.

FAQ

Does Blox charge per-transaction fees like NoFraud?

No. Blox is a flat monthly Shopify app subscription. There are no per-transaction fees and no percentage of revenue charged for using the blocklist.

Is Blox an AI fraud scoring tool like Signifyd?

No. Blox is blocklist-first. You block customers with simple rules you control. There is no AI black box scoring each checkout as the primary control.

How is Blox different from Blockify?

Blockify is typically used as an IP, bot, and country fraud filter. Blox is a community customer blocklist with automatic identity linking, so a block follows the person across emails, accounts, and participating stores.

Can Blox replace a chargeback guarantee from NoFraud or Signifyd?

No. A guarantee reimburses eligible chargebacks on orders the provider approved. Blox stops known abusers before fulfillment. Many stores use both: a guarantee for unknown traffic, and a blocklist for repeat offenders.

Does Blox have a community blocklist?

Yes. When one store flags fraud, other participating stores can be protected. Network matches are flagged for you to review, hold, or auto-cancel before fulfillment.

Can Blox automatically cancel orders from blocked customers?

Yes. Blox cancels or holds high-risk orders before fulfillment, including customers who match your blocklist or network risk signals. Set holds vs auto-cancels to match your risk tolerance.