Case Study: ICJ Inc. boosts ROAS 12% and multiplies retention, engagement and user value with AppsFlyer

Improving Retention and User Value with Smarter, Faster Mobile Marketing

ICJ Inc., a boutique APAC mobile gaming studio behind Monster Drive Revolution and Ayakashi Hyakki Yakou, struggled to attribute installs and user engagement to specific media sources using its in‑house analytics and a limited attribution tool. This lack of timely, user‑level data prevented the marketing team from optimizing campaigns, so ICJ Inc. adopted AppsFlyer’s measurement suite, marketing analytics, and raw data & APIs.

AppsFlyer automated attribution URL creation, provided centralized real‑time dashboards, and delivered deep user‑level raw data, enabling ICJ Inc. to optimize by retention and user value. Using AppsFlyer, ICJ Inc. found campaign A drove 10% higher retention, campaign B doubled paying unique users and produced 15x higher ARPPU, and overall ROAS rose 12% while Day‑3 retention became a key optimization metric.

ICJ Inc.

Kazuma Matsumoto

ICJ Inc.