Cardlytics and Kard both power card-linked offers, cash back rewards tied directly to card transactions. But they were built at different times, for different customers, with different assumptions about what a CLO platform should do.
Cardlytics is the legacy financial media network. It has scale, major bank relationships, and visibility into roughly half of all U.S. card-based transactions.
Kard is the first independent, API-first commerce media network built for modern issuers, with a Gen Z and Millennial cardholder base, a strict pay-per-performance model, and a suite of offer formats designed to generate real engagement signals.
If you're evaluating CLO platforms in 2026, here's what you need to know.
Cardlytics vs. Kard at a Glance
How Each Platform Is Built
Cardlytics: A Legacy Financial Media Network
Cardlytics was founded in 2008 and built its business by embedding offer walls inside major bank apps (think Bank of America and Wells Fargo). Cardlytics has visibility into nearly 225 million consumers and roughly half of all U.S. card-based transactions and a quarter of U.K. transactions.
In May 2025, Cardlytics launched its Cardlytics Rewards Platform (CRP), which lets non-bank merchants, like retailers and restaurants, become publishers on the network. CRP is an attempt to diversify beyond bank dependency, but it requires consumers to opt in and link their bank account inside a third-party loyalty app, adding friction to what is supposed to be a frictionless channel.
Cardlytics is a publicly traded company (NASDAQ: CDLX) that has been actively evolving its leadership and business structure over the past few years.
They’ve welcomed new executive team members following the departure of former CEO Karim Temsamani and CFO Alexis DeSieno, and implemented a strategic restructuring in October 2025 to streamline operations.
Kard: The Independent Commerce Media Network
Kard's API-first platform connects brands with cardholders across 40+ fintech and modern issuer partners like Varo, Tilt, BM Technologies, and Vervent.
“Independent” has a specific meaning here: Kard doesn’t compete with any of its issuer partners, and it maintains exclusive partnerships rather than sharing issuer relationships across multiple advertisers. A brand’s offer won’t surface simultaneously through a competing network to the same consumer.
This year, Kard has extended its API to support richer cardholder UI experiences built around a new set of dynamic offer formats, a significant departure from the single-activation CLO model that has defined the category since its inception.
Who Each Platform Is For
For Advertisers and Brands
Both platforms offer performance-based CLO. Here are the questions that separate them:
- What audience do you need?
- How much engagement data do you want from your offers?
- Are you paying for impressions served or confirmed redemptions?
Cardlytics
Cardlytics has scale and broad demographic coverage. It's well-established with large enterprise advertisers in CPG, dining, and travel. If your ICP spans all ages and national reach is the primary goal, Cardlytics is a good option.
Kard
Kard's audience is not as large, but it specifically targets digitally savvy audiences. 58% of its cardholder network is Gen Z or Millennial. For brands in retail, QSR, grocery, or any category where acquiring younger shoppers is the objective, that composition matters more than raw headcount. Kard's brand results reflect it:
- A clothing retailer drove 167% week-over-week revenue growth in three months
- Fazoli's brought in 81% new customers on its first campaign
- A drug store chain hit 14x gross ROAS against an industry benchmark of 4x
See what Kard campaigns look like in practice →
For Issuers and Fintechs
Cardlytics
Cardlytics was not designed for fintechs. Its publisher integration model is built around major bank infrastructure. That works well for Bank of America. It's a harder fit for a 30-person fintech team trying to ship a rewards feature in a quarter.
Kard
When an issuer integrates Kard's rewards API, they get:
- A curated merchant catalog
- Engagement-driven offer formats
- Revenue upside of a functioning rewards program
All without building CLO infrastructure from scratch. Atlas, a credit card built for consumers with thin credit files, saw users who earn rewards make 100% more transactions and reach 163% higher average customer value than unrewarded peers.
See how Kard's rewards platform works for issuers →
Audience: Who Your Offers Actually Reach
Cardlytics
Cardlytics' 225M consumers come primarily from major bank networks, which skew toward older, higher-income cardholders.
Kard
Kard's 61M+ cardholders skew in the opposite direction. Its network is built on fintech and neobank apps, with a majority of cardholders being Gen Z or Millennial. If that's your target customer, Cardlytics' scale advantage doesn't help much.
Offer Formats and Cardholder Engagement
Cardlytics
With the Cardlytics' model, a cardholder opens their banking app, browses a list of brand offers, taps to activate one, and the reward fires when they transact. CRP extends this into non-bank loyalty programs, but the underlying mechanic is the same. One offer, one activation, one signal.
Kard
Kard’s model is frictionless by default. Offers are automatically matched to transactions without requiring activation (though Kard does have tap-to-activate offers for merchants who need clicks for attribution).
On top of that, Kard offers formats designed for specific outcomes: progressive rewards that increase with repeat purchases, spend-tiered rewards that drive higher AOV, urgency-based flash offers, and tap-to-activate for merchants who need a clear intent signal for attribution.
Targeting and Personalization
Cardlytics
Cardlytics targets based on purchase history across its publisher network.
It can identify consumers who've spent at competitors, lapsed customers, or category buyers and serve relevant offers. Its CRP product layers in third-party purchase data for non-bank publishers.
However, one longstanding criticism of the network model is that offers aren't exclusive to the issuer — the same consumer may see the same brand offer through multiple bank channels simultaneously.
Kard
Kard, on the other hand, uses predictive AI on first-party transaction data to support new customer acquisition, lapsed customer re-engagement, repeat buyer cultivation, and competitor-spend targeting.
Exclusive issuer partnerships mean an advertiser's offer reaches a specific audience without inventory dilution across shared partners. The engagement formats (tap-to-boost, progressive, etc.) also generate behavioral data that feeds back into targeting, creating a loop between intent signals and audience refinement.
How Each Platform Charges Advertisers
Cardlytics
Cardlytics has operated on two models. Its legacy and primary model is Cost Per Served Sale (CPS): advertisers pay when a consumer is shown the offer and makes a purchase — regardless of whether they activated the offer.
Cardlytics has announced a shift toward Cost Per Redemption (CPR), but CPS has represented the majority of its revenue through recent reporting periods. Under CPS, an advertiser can be charged for a purchase the offer may not have influenced.
Kard
Kard operates on a strict pay-for-performance model. Advertisers pay only when a cardholder redeems an offer. No impression fees.
For a performance marketer managing against hard CPA targets, being able to tie every dollar of spend matters a lot.
Measurement and Attribution
Both platforms use transaction-verified test/control methodology for incrementality measurement. Both offer 100% match rates with no probabilistic matching, no cookies, and no bot traffic. This is a genuine shared advantage over display, social, and most affiliate channels, and it's the core reason performance marketers take the CLO channel seriously.
Incrementality measurement, isolating the lift your campaign actually drove versus baseline behavior, is available on both platforms. The methodology involves splitting cardholders into test and control groups drawn from actual transaction data. The test group sees the offer, the control group doesn't.
The difference in purchase behavior between the two groups is the incremental lift attributable to the campaign. It's a more reliable read on true campaign impact than click-based or last-touch attribution, because it accounts for consumers who would have bought anyway.
Where they diverge: Kard's offer formats generate engagement signals upstream of the final transaction — like progressive reward activations and renewal opt-ins — giving merchants visibility into the path to purchase, not just the outcome at the end of it.
Integration and Platform Flexibility
Cardlytics
Cardlytics' publisher integration is built for enterprise banks, which means integrating with Cardlytics as a publisher means working within its platform architecture, its offer formats, and its reporting structure.
For large financial institutions with dedicated engineering teams, that's manageable. For fintechs or brands evaluating CRP, the requirement for consumers to link their bank account inside a third-party app adds friction that can suppress participation rates.
Kard
Kard is API-first by design. Issuers can integrate the rewards API directly into their existing app experience, configure their own cardholder UI, and ship a functioning rewards program without building CLO infrastructure from scratch.
Kard has launched SDKs, WebView, and an Extended API to support richer UI experiences around the new offer formats, giving issuers more control over how rewards appear and behave within their product.
For brands, the practical difference is support depth. Kard's model is built around dedicated account management — issuers and merchants work closely with Kard's team to plan campaigns, integrate new offer types, and optimize based on performance data, rather than managing campaigns through a self-serve dashboard.
What to Ask Before You Sign
Regardless of which platform you're evaluating, these are the questions worth getting answered before you commit.
For brands and advertisers:
- What pricing model will my campaigns run under? If CPS, how is the rate set, and what counts as a qualifying purchase?
- How is incrementality measured and reported? Will I get transaction-level data or network-level aggregates?
- Are issuer relationships exclusive, or will my offer run across shared inventory?
- What segmentation options are available? Can I target new customers only, or lapsed buyers, too?
- What does the account management relationship look like? Is there a dedicated team, or is this self-serve?
For issuers:
- How does the integration work, and what does the implementation timeline look like realistically?
- What merchant categories are represented in the network, and do they match my cardholders' spending patterns?
- How does the revenue share model work, and what should I expect in terms of interchange lift?
- What offer formats are available, and can I configure the cardholder UI within my own app?
- How do you measure whether the rewards program is driving incremental card usage versus rewarding spend that would have happened anyway?
Want more tips? Read What to look for in a CLO platform.
Where Cardlytics Has the Edge
- Scale: 225M consumers is much higher than 61M. For broad national campaigns across all demographics, Cardlytics has reach that Kard doesn't yet match.
- Cross-demographic coverage: Strong across Boomers, Gen X, and older Millennials.
- Established enterprise relationships: A familiar line item in large brand media procurement.
- U.K. presence: If your campaigns require U.K. coverage, Cardlytics has it.
- Legacy bank depth: Deep integrations with 7 of the 10 largest U.S. banks. If your campaign specifically needs those cardholder pools, Cardlytics is the direct path.
Where Kard Has the Edge
- Gen Z and Millennial audience: 58% of the network is Gen Z or Millennial, sourced from fintech and neobank partners. No other CLO platform has built its publisher base specifically around this demographic.
- Independent network: Exclusive issuer partnerships protect advertisers from offer dilution. Your brand isn't competing with itself across shared inventory.
- Dynamic offer formats: A suite of engagement-driven mechanics that generate intent data, drive app return visits, and give merchants more than a binary redeem/no-redeem signal.
- Strict pay-for-performance: Pay-for-performance only. Every dollar is tied to a confirmed redemption.
- API-first architecture: Built for fintechs. Configurable, faster to integrate, designed for teams without a bank's IT department.
- Issuer revenue upside: Rewards programs on Kard generate interchange lift and commission revenue for issuers.
- Engagement data upstream of conversion: Intent signals tied to specific offer interactions give both merchants and issuers behavioral data that a static offer wall can't produce.
Which Platform Fits Your Use Case?
Choose Cardlytics if:
- You're a large enterprise advertiser running broad national campaigns across all demographics
- Your ICP spans Boomers, Gen X, and older Millennials alongside younger audiences
- You need U.K. coverage
- You're a traditional bank or credit union looking for a proven, enterprise-grade CLO integration
- You're comfortable with CPS pricing (paying based on impression plus purchase, not purely on redemption)
Choose Kard if:
- You're a brand trying to acquire Gen Z and Millennial consumers at scale
- You want offers that generate engagement signals, not just sit in an offer wall
- You're a fintech, neobank, or modern FI that needs an API-native CLO platform you can configure for your own cardholder experience
- Attribution and transparency matter — transaction-level reporting, not aggregated network summaries
- You want strict pay-for-performance: every dollar confirmed against a redemption
- You want exclusive network relationships, not offers shared across competing issuer channels
Cardlytics has scale. Kard has the audience, the formats, and the model that performance marketers actually want.
If you're a brand trying to reach Gen Z and Millennial shoppers with offers that drive real engagement, not just impressions, schedule a demo to see what Kard can do.
About This Comparison
We've tried to represent Cardlytics' capabilities accurately and to identify where they have genuine advantages. If something is out of date, let us know.
