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Marika Tselonis

Marika Tselonis

Marika Tselonis is the director of retention at Kulin, where she leads lifecycle strategy for ecommerce brands focused on sustainable growth. With nearly a decade of experience in retention, lifecycle, and performance marketing, she builds high-impact email and SMS programs grounded in clean data, smart segmentation, and customer-first thinking. A Klaviyo Champion and trusted retention advisor, Marika has partnered with brands across apparel, wellness, CPG, and lifestyle to turn automation into a scalable growth channel and drive long-term customer value.

Posts by this author

Marika Tselonis
Jan 23, 2026
WhatsApp vs. SMS
Choosing between SMS and WhatsApp? This guide explains how to prioritize channels by regional usage, cost, and features not just pricing.