These real Retention.com case study comparisons reveal what happens when brands run head-to-head tests to validate identity resolution performance, accuracy and deliverability.

DTC brands like fashion Shopify store Jordan Craig and beauty skincare brand Mirai Clinical evaluated Retention.com against Customers.ai to determine which identity resolution solution truly delivered higher visitor match rates, improved email deliverability, and more revenue per contact.

Time and again, the results were clear: Customers.ai consistently outperformed Retention.com across accuracy, engagement, and ROI in these real-life brand tests.

If you’re using Retention.com or exploring visitor ID tools, these case studies offer firsthand proof of why marketers are switching to data they can trust.

Want to run your own Retention.com comparison test? Start here.