Shieldy vs. Signifyd: A Fair Comparison

Merchants often frame fraud tools as a single category, but Signifyd and Shieldy — Fraud Filter approach the problem from genuinely different angles. Understanding that difference matters more than any feature checklist, because it decides what you are actually paying for and what risk stays on your books.

Two Different Philosophies

Signifyd is built around a financial guarantee. It scores each order with machine learning, and for orders it approves, it typically offers a chargeback guarantee: if an approved order turns out to be fraudulent, Signifyd reimburses the loss under its terms. You are, in effect, buying insurance plus automation.

Shieldy — Fraud Filter is built around prevention and control. It stops unwanted traffic and risky orders earlier — blocking by IP, country, VPN, proxy, Tor, and bot signatures, with checkout-level blocking and AI fraud scoring. Instead of reimbursing a bad order after the fact, the goal is to prevent it from being placed at all.

Neither approach is universally "better." They optimize for different outcomes:

• Signifyd optimizes for guaranteed financial outcomes on approved orders.
• Shieldy optimizes for who reaches your checkout and which orders you accept.

Cost Models

This is where the split becomes concrete.

Signifyd's guarantee model is generally usage-based — pricing scales with the volume and value of orders it reviews and covers. For high-volume merchants with meaningful chargeback exposure, that cost can be justified by the losses it absorbs. For a smaller store, a percentage-of-orders model can feel heavy relative to actual fraud losses.

Shieldy uses flat, predictable pricing:

• Free — $0/mo for core blocking rules
• Enterprise — $8.99/mo
• Shopify Plus — $16.99/mo

A flat fee means your fraud-tooling cost does not rise with a good sales month. The trade-off is honest: Shieldy does not reimburse a chargeback that slips through. It reduces the number of risky orders that reach you, but the residual risk stays with you.

Coverage: What Each Actually Catches

Signifyd shines at nuanced, order-level decisioning. Its models weigh dozens of signals to separate a genuine-but-unusual buyer from a fraudster, which reduces false declines on legitimate high-value orders — a real strength for merchants who lose revenue to over-cautious manual review.

Shieldy shines at the traffic and rules layer:

• Geographic control — block or restrict countries and regions you do not ship to or that drive disproportionate fraud
• Network signals — flag or block VPN, proxy, Tor, and known-bad IP ranges
• Bot mitigation — cut automated abuse before it distorts your data or hits checkout
• Checkout-level blocking — stop a flagged order at the moment it matters

If most of your problem is scripted abuse, card-testing bursts, or orders from regions you never intended to serve, prevention at the edge is often the cleaner fix than reviewing each order after it lands.

Fit by Store Size

Smaller and mid-size stores frequently find a rules-and-blocking tool a better match. Fraud losses may not yet justify a guarantee's premium, and predictable pricing keeps overhead low. Shieldy's Free tier lets you start controlling access at zero cost, then move to Enterprise at $8.99/mo as your rules mature.

Large and high-value merchants with substantial chargeback exposure may find a guarantee model like Signifyd's genuinely economical — the reimbursed losses can exceed the fee. Many at this scale also run both: Signifyd (or a similar guarantee provider) for order-level financial protection, and a blocking tool like Shieldy on the Shopify Plus plan at $16.99/mo to keep bots, abusive geographies, and anonymizing networks out of the funnel entirely.

Where They Complement Each Other

It is worth stating plainly: these tools are not mutually exclusive. A guarantee provider works best when the traffic it scores is already reasonably clean. Filtering out obvious junk — Tor exit nodes, proxy floods, bot swarms — before it reaches the scoring engine can improve the quality of decisions and reduce noise. Prevention and guarantee sit at different layers of the same funnel.

A Simple Way to Decide

Ask two questions:

1. Is my main pain chargebacks on orders that look legitimate? If yes, a guarantee model earns its keep.
2. Is my main pain unwanted traffic, bots, or orders from places I never meant to serve? If yes, prevention and blocking will move the needle faster and cheaper.

Most stores lean one way. A growing number benefit from a thin layer of both.

If your priority right now is stopping bad traffic before it becomes a bad order — with pricing that stays flat as you grow — Shieldy — Fraud Filter is a low-risk place to start. Turn on the rules that match your store, watch what gets filtered, and scale up only when the data says you should.