Footprints AI vs CitrusAd
CitrusAd, powered by Epsilon and owned by Publicis, is an identity-led online retail media platform that unifies on-site and off-site campaigns through CORE ID. Footprints AI is physical-store-first, building audiences from 100% shopper behavior and proving in-store incremental sales. The difference: CitrusAd resolves identity across the web; Footprints AI measures the shopper in the store.
Last reviewed June 2026 · Comparison based on publicly available information.
Footprints AI vs CitrusAd, capability by capability
| Capability | CitrusAd public positioning | Footprints AI positioning |
|---|---|---|
| Core strength | Identity-led online RMNUnified on-site and off-site campaigns, resolved and measured through Epsilon CORE ID. | Retailer-owned RMNPhysical-store-first media, shopper intelligence and closed-loop sales proof, in one platform. |
| In-store media | Identity-matched in-store activation and digital screens; online-rooted. | In-store screens, audio, POS, shelf and Wi-Fi as a measured physical channel. |
| Audience data | Retailer first-party data resolved through 300M+ CORE IDs across the web. | Audiences from 100% shopper transaction behavior, with missions, cohorts and propensity. |
| Measurement | Transaction-based, SKU-level, tying campaigns to on-site and in-store sales via identity. | Closed-loop SKU and store-level attribution, incrementality-ready with test and control. |
| Channels | On-site, off-site, video, CTV, digital screens and email, unified and self-serve. | In-store, on-site and off-site in one workflow, same shopper logic and measurement. |
| Ownership model | Platform owned by Publicis and Epsilon; white-label sell-side for retailers. | White-label, multi-tenant platform the retailer owns, with its own data. |
| Best fit | Brands and retailers focused on identity-led online retail media at scale. | Retailers that want physical store media and proof of in-store incremental sales. |
Based on public CitrusAd and Epsilon retail media pages and public Footprints AI platform information as of June 2026. Framed by use case, not by unsupported feature claims.
Capability scorecard
| Capability | CitrusAd | Footprints AI |
|---|---|---|
| In-store as a first-class media channel | Partial | Full |
| Store Twin forecasting to plan & pace delivery | None | Full |
| Audiences from real shopper behavior (100% coverage) | Partial | Full |
| One campaign workflow across in-store + digital | Partial | Full |
| Proof of delivery & real-time pacing (in-store & online) | Partial | Full |
| SKU + store-level attribution (uplift-ready) | Partial | Full |
| Built-in AI insights (missions, cohorts, basket shifts) | Partial | Full |
| Enterprise scale: private AI, white-label, multi-tenant | Partial | Full |
| Open APIs + integrations (DSP, CDP, retail systems) | Partial | Full |
| Privacy-safe architecture for global rollouts | Full | Full |
Scorecard summarizes the comparison above. "Full" means the capability is a first-class product layer; "Partial" means it is present through adjacent infrastructure, a single channel or bring-your-own-data; "None" means it is not positioned as a core capability. CitrusAd is a mature platform and earns full marks on privacy-safe, cookieless identity, with strong marks on audiences, measurement and reach; the gaps are in physical-store-first media and in-store incrementality. Scoring as of June 2026.
What is CitrusAd?
CitrusAd, powered by Epsilon and owned by Publicis Groupe, is an identity-led online retail media platform. It unifies on-site and off-site campaigns, sponsored product, display, video, CTV, digital screens and email, in a single self-serve interface, and ties them to sales at the SKU level through transaction-based measurement. It works with 70+ major retailers and 4,000+ brands across more than 20 countries.
Its differentiator is identity: Epsilon's CORE ID spans 300M+ privacy-protected identifiers, letting brands target and measure across on-site and off-site without third-party cookies, with clean-room collaboration on permissioned data. It was named a Leader in Forrester's sell-side retail media evaluation.
CitrusAd is a mature, identity-led platform, and this page credits that. But it is rooted online: its identity graph resolves shoppers across the web, its in-store presence is identity-matched activation rather than a physical-store-first media operation, and its audiences are built around CORE ID rather than 100% in-store transaction behavior. Footprints AI starts in the store.
Sources reviewed: CitrusAd and Epsilon retail media pages plus public reporting, June 2026.
What is Footprints AI?
Identity graphs resolve who a shopper is online. But roughly 84% of US retail sales still happen in physical stores (US Census Bureau, Q3 2025), where the real signal is the transaction, not the cookie or device ID. That is where Footprints AI starts.
Footprints AI is a next-generation retail media platform built first for the physical store. It treats in-store as a first-class, measured channel across screens, audio, POS, shelf and Wi-Fi, then extends across on-site and off-site. The platform spans five modules, Campaigns, Audiences, Sales & Shopper Insights, In-Store Measurement and Leads, so the retailer runs the whole operation in one place.
Where CitrusAd resolves identity across the open web with CORE ID, Footprints AI measures the shopper in the store, with audiences from 100% shopper transaction behavior, in-store media as a measured channel, and closed-loop SKU and store-level incrementality. The operating promise: buy true reach, pay per view, get real sales attribution.
It operates at scale across 30+ retailers, 65 agencies, 550+ brands and 50M+ shoppers, tracking 5B+ shopping trips and 7,000+ campaigns, deployed as a white-label, multi-tenant platform a retailer owns, in-store and online.
The differences that matter
Identity graph vs in-store transaction
CitrusAd resolves shoppers across the web with CORE ID. Footprints AI builds from 100% in-store and online transaction behavior.
Online-rooted vs physical-store-first
CitrusAd is rooted in e-commerce and the open web. Footprints AI is physical-store-first, with the store as a measured channel.
Measurement model
CitrusAd ties campaigns to sales via identity matching. Footprints AI proves in-store incrementality with test and control at SKU and store level.
Ownership
CitrusAd is a platform owned by Publicis and Epsilon. Footprints AI is a white-label platform the retailer owns, with its own data.
Footprints AI proof, not promises
Footprints AI case studies include outcomes such as +390% sales uplift for Jack Daniel's, +55% sales lift for Persil, 10× ROAS for Mutti and +23.29% sales uplift for Coca-Cola. Across the platform, campaigns deliver 5 to 8× ROAS versus a roughly 2× industry average, with +25% new-to-brand buyers and +20% basket incidence among exposed shoppers.
Footprints AI campaign results, measured with closed-loop attribution. Incrementality is claimed only where the measurement design supports it. Figures as of June 2026.
Who should choose which?
Choose CitrusAd if
You are focused on online retail media and value identity-led targeting and measurement across on-site and off-site, with cookieless CORE ID and clean rooms. CitrusAd is a strong, mature choice.
Choose Footprints AI if
You want physical-store media and proof of in-store incremental sales, with audiences from 100% shopper behavior, on a platform you own across in-store and online.
The Footprints AI retail media stack
Retail Media Network Platform · build and scale a retailer-owned media business. In-Store Retail Media · turn physical stores into measurable media. Closed-Loop Measurement · connect exposure to SKU and store outcomes.
Footprints AI vs CitrusAd, answered
What is the main difference between Footprints AI and CitrusAd?
CitrusAd, powered by Epsilon, is an identity-led online retail media platform that unifies on-site and off-site through CORE ID. Footprints AI is physical-store-first, building from 100% shopper behavior and proving in-store incremental sales. CitrusAd resolves identity online; Footprints AI measures the shopper in the store.
Who owns CitrusAd?
CitrusAd was acquired by Publicis Groupe in 2021 and operates within Epsilon as CitrusAd, powered by Epsilon. Footprints AI is an independent platform that retailers deploy and own, white-label and multi-tenant.
Does CitrusAd do in-store retail media?
CitrusAd offers identity-matched in-store activation and can tie digital campaigns to in-store sales through CORE ID and loyalty data, but it is online-rooted. Footprints AI runs the physical store as a measured channel with SKU and store-level incrementality.
How does measurement compare?
CitrusAd uses transaction-based, identity-matched measurement at the SKU level across on-site and off-site. Footprints AI adds physical-store-first closed-loop measurement with incrementality-ready test and control at SKU and store level.
Is Footprints AI a good CitrusAd alternative?
For retailers that need physical-store media and in-store incrementality from 100% shopper behavior, yes. For identity-led online retail media at scale, CitrusAd is a strong, mature choice. Many retailers value each for what it does best.
Can Footprints AI work alongside identity solutions?
Yes. Footprints AI has open APIs and integrates with retail systems, DSPs and CDPs, so it can complement identity tooling while adding physical-store media and closed-loop in-store measurement.
Beyond identity, prove the sale
Measure in-store incremental sales from 100% shopper behavior, on a platform you own across in-store and online.
Comparison based on publicly available information about CitrusAd as of June 2026. CitrusAd and Epsilon are trademarks of their respective owners. Footprints AI is not affiliated with CitrusAd.
