Adrian J Cotterill, Editor-in-Chief
MFour Data Research, a leader in measuring the real-world impact of out-of-home advertising, last week launched an Attribution add-on to its iOOH Brand Lift solution, bringing true full-funnel measurement to OOH by linking verified ad exposure to app installs, website actions, and in-store foot traffic – all delivered in a single, executive-ready report.
Chris St. Hilaire, CEO of MFour Data Research told us “OOH measurement isn’t just for awareness anymore. With iOOH™ Attribution, marketers can prove—and scale—what OOH really drives: installs, site actions, store visits, and brand lift, all verified against real, opted-in consumers. That clarity turns OOH into a performance channel you can optimize with confidence. With the largest, all-mobile, opted-in consumer panel in the U.S. – sharing app, web, and location signals and participating in surveys – we can directly connect exposure to behavior. No more inference. Later this month, we’ll introduce purchase data, further closing the path-to-purchase loop and giving advertisers a complete view of ROI”.
The iOOH solution provides validated brand-lift metrics for OOH campaigns by measuring attitudinal change based on verified exposure to advertising. Exposure is validated using MFour’s opted-in, location-enabled consumer panel and connected to outcomes across app, web, and location via MFour’s unified consumer ID.
This new iOOH Attribution add-on specifically quantifies behavioral change – linking exposure to user-level app activity, website actions, and foot-traffic patterns.

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