Success Story

Improving Retention and User-Value with Smarter, Faster Mobile Marketing

  • 12%
    Boost Return on Ad Spend
  • 15X
    Boost Loyalty in Q1
  • 10X
    Increase Engagements in Q1


ICJ ( is a boutique mobile gaming studio with two wildly popular games; Monster Drive Revolution, a roll-playing title and Ayakashi Hyakki Yakou, a card game based on a popular Japanese card game.


At launch, ICJ relied on an in-house app analytics system and other attribution tool to measure installs and user behavior. Their internal system could not attribute user engagement to a specific media source or campaign. However, their marketing team wanted to optimize their marketing campaigns based on their ability to drive quality, paying users.

Furthermore, the other attribution tool provided limited access to user-level data. To compound matters, analyzing data on their tool was a highly manual process. The net result was that their internal solution made it difficult for their marketing team to make timely, important marketing decisions.


ICJ upgraded to AppsFlyer, an independent mobile attribution and marketing analytics platform. Thanks to AppsFlyer, ICJ cut-out a team of middlemen, automatically creating their own tracking URLs on-demand – saving time and money. AppsFlyer’s centralized reporting dashboards provided ICJ with real-time performance insights, introducing fresh opportunities for their marketing team. For example, by regularly monitoring each campaign’s average retention, ICJ was able to optimize their campaigns to improve their lifetime value. To cap it all off, AppsFlyer’s raw data reports provided ICJ with deep user-level data, revealing the total value each media source and campaign.


AppsFlyer’s multifaceted real-time reporting and analytics helped ICJ to make smart, timely marketing decisions. For example, looking at retention rate, campaign A resulted 10% higher, but campaign B doubled the number of paying unique users and 1.5 times higher ARPPU. By understanding by user-engagement and retention ICJ developed user-value based models, and with AppsFlyer, ICJ developed a diversified performance models based on ROAS (return on ad spend), retention, paying unique users and ARPPU. The impact of this multi-dimensional analysis was profound. For example, by optimizing to increased their paying users, ICJ saw as 12% increase in ROAS.

Furthermore, this broad-based approach to mobile analytics allowed ICJ to refine their internal KPIs. For example, ICJ discovered that Day 3 retention was a primary indicator of long-term user engagement. This allowed them to optimize their marketing efforts

AppsFlyer’s real-time data helped us analyze our marketing data on a granular level,
revealing the best media from a wide range of promotional channels in real-time.
ICJ Inc., Kazuma Matsumoto