Success story
A world-class hypermarket chain
Carrefour offers customers a wide range of products through its brick-and-mortar and e-commerce outlets in a competitive, saturated industry. In a bid to stand out from the crowd, Carrefour Taiwan leveraged Appier’s cross-screen AI technology not only to raise brand awareness but also boost online sales.
Improved performance with AI technology

Accelerating the awareness of the online store with page-view growth of up to 60% (month on month)

Boosted the online store purchases and revenues by 25% (month on month)

With Appier CrossX AI, cross-screen CTR was 87% higher than single-screen engagement while cross-screen CVR proved 40% higher than for a single-screen campaign

Top global retail chain

Carrefour, a France-headquartered global retailer, is one of the largest hypermarket chains in the world. The brand operates 103 outlets in Taiwan alone. Carrefour launched its online store in Taiwan in December 2015 to address the boom in e-commerce. Over the years, the online market has become increasingly saturated, making it challenging even for big brands to stand out.

Driving more online sales and awareness through a cross-screen approach

According to Kantar Worldpanel research, the online retail market grew 30% in terms of sales in 2017 Q1, surpassing a 5% rise in offline retail over the same period. Competition is increasingly tough. A smart and flexible strategy is the only way to optimize outcomes, especially with limited budgets.

Carrefour is expanding online, and wanted to reach more potential consumers through its online store. The marketing team wanted to boost awareness and drive more online purchases, while optimizing the cost per action(CPA).

An AI-driven Programmatic Platform with a cross-screen approach

Appier AI technology is capable of identifying all devices owned by the same user from billions of data points. When a potential buyer visits the Carrefour online store on one device (e.g. a PC), Appier can analyze his or her profile and deliver customized product recommendations on other devices owned by the same person (e.g. a phone), motivating the person to buy from the Carrefour online store.

Appier’s AI analyzes user behaviors both within and outside of the website to determine the activities of a single user as well as to segment different users. Cross-comparisons with the Appier CrossX database along multiple dimensions allow Appier to locate potential customers in similar segments to expand the original user base.


Those aged 35-44 were most likely to take action.

Males were more likely to take action than females.

People who entered the Carrefour online store via Food & Drink, News and Shopping-related websites were most likely to click through or make purchases.


The CTR of cross-screen users was 87% higher, and CVR 40% higher, than for single-screen users.

When starting and converting on the same device, cross-screen users had a 11x higher chance of conversion than single-screen users.

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