Klaviyo Email Marketing Reviews
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Klaviyo Email Marketing Reviews
Real Feedback from eCommerce Brands I’ve Helped Grow
Over 150 eCommerce brands worldwide have trusted me with their Klaviyo email marketing. Here’s what they say about the results, the process, and the growth we achieved together.
Lewis Dalton - Lewis Dalton Copywriting Services Limited
OwnerKlaus Ryum Larsen - Trollbeads Canada
OwnerDominik Djukic - Empower Brands
CEO | FounderKlaviyo Email Marketing Reviews
Client Reviews
I’m Ivana Kostić, a Klaviyo Expert and Email Marketing Strategist with 9+ years of experience and a proven record of 150+ successful Klaviyo projects across industries.
As a Top-Rated freelancer on Upwork with a 100% Job Success Score, I’m proud to be among the top 3% of freelancers worldwide. My clients consistently highlight the measurable impact of my work — from boosting revenue by 20–40% to building stronger customer loyalty with automation and campaigns.
👉 You can explore my full profile on Upwork to see verified reviews and results from brands I’ve partnered with.