Fermat Commerce is a strong product. AI-personalised post-click funnels — generating bespoke landing experiences tailored to the visitor and ad creative — is genuinely differentiated. For brands with enough ad spend to extract ROAS lift from that personalisation layer, Fermat earns its price.
For most Shopify merchants, the same problem (get the visitor from click to checkout fast, with the right cart and the right discount) doesn’t need an AI funnel. It needs a link. This page is the honest comparison.
At a glance
| Fermat Commerce | Checkout Links | |
|---|---|---|
| Pricing | Custom enterprise (multi-hundred+/month) | $25/month, 7-day free trial |
| Core mechanism | AI generates tailored post-click funnels | Predictable, configured-once links |
| Personalisation | AI per visitor + ad creative | Per recipient (you set it explicitly) |
| Time to launch | Days (funnel design + AI training) | Minutes |
| Auto-applied discount | Yes | Yes |
| Per-link analytics | Yes (funnel-level) | Yes (link-level) |
| QR codes | No native | Branded, automatic |
| Built for | Mid-market and enterprise DTC, high ad spend | All Shopify merchants |
| Variability between visitors | Designed-in (AI variation) | Designed-out (same link = same experience) |
When Fermat is the right call
Honest take — Fermat is the right call in genuinely narrow but real situations:
- Your monthly ad spend is high enough to extract ROAS lift from AI personalisation. Roughly $50K/mo+ where small lift in funnel conversion produces meaningful dollars.
- You have a growth team that can QA AI-generated post-click experiences. Without that QA loop, AI variability is a brand-consistency risk.
- You’re comfortable with creative variation between visitors. Some brands explicitly want every visitor to see the same flow. Fermat is the opposite of that.
If those describe your operation, Fermat earns its money.
Where Checkout Links pulls ahead
Predictability
Every visitor who clicks a Checkout Link sees the same products, the same discount, the same checkout flow. Attribution is clean. QA is simple. Brand consistency is automatic.
Fermat’s AI personalisation deliberately introduces variation visitor-to-visitor. That can be powerful when it lifts ROAS — and confusing when an exec asks “why did this customer see a different price?”
Price
$25/month vs custom enterprise pricing. For most merchants the ROAS lift Fermat needs to justify its cost simply doesn’t materialise — they’re better off spending the difference on more ads through a predictable, well-attributed funnel.
Speed to working campaign
Checkout Links: pick products, pick discount, copy URL. Minutes.
Fermat: connect ad accounts, set up creative variants, train the AI layer, QA the funnel outputs. Days. That’s the cost of personalisation.
Native Shopify features
Both products use Shopify checkout. Checkout Links is Built for Shopify certified, integrates natively with Shopify Functions for discounts, Shopify Flow for automation, and the Shopify admin for analytics. Fermat plugs in but is fundamentally an external funnel layer.
Branded QR codes
Every Checkout Link includes a branded QR for offline campaigns. Fermat is digital-funnel-focused; no native QR mode.
Try Checkout Links
If Fermat earns its money in your funnel, keep it. If you’ve been priced out or are running campaigns at a scale where AI personalisation feels like overkill, Checkout Links covers the same “land on the right cart fast” job at 5-10% of the cost.
Related reading: Shopify Buy Button alternative, Shopify cart permalinks alternative, Shogun alternative, Replo alternative.