Case Study: Swanky (Shopify Plus ecommerce agency) achieves 26% increase in revenue per user with Convert.com (A/B testing platform)

The simple sale overlay that led to a 26% increase in revenue per user

A fast-fashion ecommerce shoe retailer facing rapidly eroding margins—products that didn’t sell within two days were eventually cleared at a 38% discount—engaged Swanky, a Shopify Plus CRO specialist, to boost sales and reduce discounting. Swanky’s challenge was to make the value of discounts immediately clear on mobile to drive more clicks and sales without sacrificing margin.

They A/B tested two mobile sale overlays (corner percentage icon vs full-width discount banner) using Convert across ~5,000 visitors over 12 days. Both challengers lifted product-page visits by 5%, but the full-width banner increased purchase conversion by 19% (95%+ confidence) and delivered a 26% increase in revenue per user (98%+ confidence), proving clearer, mobile-first discount messaging significantly improved ROI.

Swanky

Sean Clanchy

Head of Digital Optimisation