Case Study: Charlie Hustle achieves a 35% increase in repeat customer rate with Smile.io

A Smile.io Case Study

Preview of the Charlie Hustle Case Study

How rewards improved Charlie Hustle’s repeat customer rate by 35%

Charlie Hustle, a Kansas City apparel brand, wanted to strengthen its community, drive more repeat purchases and referrals, and tie loyalty into its existing email marketing stack (Klaviyo). They chose Smile.io to launch Bleacher Club, a rewards program designed to boost account signups, social engagement and word‑of‑mouth growth.

Using Smile.io’s rewards platform and Klaviyo integration, Charlie Hustle rolled out Bleacher Club and saw measurable gains in under a year: more than 380 new program members per month, a 35% lift in repeat customer rate, and a 20% increase in engaged Instagram followers. Smile.io’s features and support also increased account creations, referrals and targeted email engagement, improving overall site activity and customer retention.


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Charlie Hustle

Patrick McAnulty

Social Media Manager & Customer Support


Smile.io

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