Case Study: HK Express achieves 89% lower CPA and halves budget spend with Appier's CrossX AI

Boosting online bookings on every screen

HK Express, Hong Kong’s only low-cost carrier serving 23 Asian destinations, needed to drive awareness of online promotions and increase bookings across devices while keeping cost-per-acquisition low in a fiercely price-competitive market.

By deploying Appier’s CrossX AI to create a single customer view, run cross-device remarketing and expand reach with lookalike audiences, HK Express exceeded its booking target within three weeks, beat CPA targets by 89%, spent only 50% of its planned budget, and achieved a 44% higher cross-screen CTR versus single-screen — also uncovering that more bookings came from PC than from phones or tablets.

HK Express