Case Study: Trendyol achieves growth in mobile transactions from 10% to 24% with Criteo In-App

Share of mobile transactions in the Criteo campaign of Trendyol grew from 10% to 24% due to the launch of InApp

Trendyol, a leading Turkish fashion e-commerce site with more than 4 million monthly unique users, pursued a mobile-first strategy and needed to maintain an outstanding app experience while increasing in-app conversions and revenue. The challenge was to monetize its highly valuable, loyal app audience without degrading user experience.

By launching Criteo InApp—real-time, personalized in-app ads that combine customer behavior data with Trendyol’s product catalog and creative—Trendyol served dynamic, ROAS‑optimized banners to app users. The campaign grew the share of mobile transactions from 10% to 24% and delivered a 10% monthly uplift in mobile revenue, +25% ROI vs. desktop, +60% CTR vs. web and +12% conversion rate vs. web.

Trendyol