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

DTC brands like home goods Shopify store Modern Blaze and health supplements brand Bear Balanced evaluated Opensend 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 Opensend across accuracy, engagement, and ROI in these real-life brand tests.

If you’re using Opensend 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 Opensend comparison test? Start here.