Case Study: Fun and Function achieves 33% increase in repeat purchases and 86% boost in email revenue with Retention Science

How AI increased engagement and repeat purchase rate

Fun and Function, founded by Aviva and Haskel Weiss to create kid-friendly sensory tools informed by Aviva’s occupational therapy expertise, helps families, schools and clinics support children with special needs. The company wanted to boost repeat purchases outside seasonal peaks but struggled to personalize timing and messaging across a diverse customer base of families, schools, clinics and early intervention programs.

They implemented Retention Science’s automated lifecycle stages and AI-driven personalization: product recommendations were sent to customers flagged as “Ready to Buy” while timely blog content nurtured those between purchases, and templates and subject lines were continuously optimized without manual A/B tests. The campaign—powered by Fun and Function’s content-rich creative—delivered a 33% increase in repeat purchase rate, 86% increase in email revenue, 10% lift in GA conversion rate and a 39% drop in unsubscribe rate.

Fun and Function

Daniela Weiss

Chief Marketing Officer