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Case Studies

Ninja Miles grew Day 7 ROAS by 40% while holding CPA at approximately ¥300 (US$1.90)

By:
Moloco

April 17, 2026

About Sango Technologies Inc.

Sango Technologies Inc. develops and operates Ninja Miles, a rewards mobile app built around a simple mechanic: users earn miles automatically just by typing on their keyboard. No extra steps. No behavior change required. The product philosophy is "effortless and accessible for everyone," turning everyday typing into a seamless point-earning experience.

The challenge

Ninja Miles offers a remarkably simple yet innovative concept: "Earn miles just by typing on your keyboard." To bring this unique product to as many users as possible, Sango Technologies was simultaneously addressing two key growth challenges: efficient new user acquisition and maximizing revenue through in-app advertising .

The solution

Phase 1: Launching user acquisition 

Sango Technologies launched UA campaigns on Moloco's AI-powered performance platform in May 2025. Moloco's AI made the most of Sango Technologies’ first-party data signals to optimize its real-time bidding, identifying and reaching users likely to convert. After approximately one month of Moloco’s AI learning and optimizations, campaigns reached their target ROAS.

Phase 2: Implementing the Moloco SDK

To build toward a unified monetization and user acquisition strategy, Sango Technologies integrated the Moloco SDK in June 2025. This connected ad monetization data back to their acquisition activity, creating the foundation needed for the next phase. 

Phase 3: LeveragingSDK-powered Moloco Ads

With the Moloco SDK in place, Sango Technologies unlocked Moloco’s latest AI capabilities across their user acquisition campaigns, starting October 2025. Designed specifically for publishers running the Moloco SDK and monetizing through in-app advertising, these improvements enable more accurate evaluation of user LTV, strengthening both acquisition efficiency and long-term profitability. 

Results

Leveraging these new system improvements  produced a meaningful shift in performance.

  • Scaled installs 3x while lowering CPI
  • Day 7 ROAS improved by 40%
  • Ad revenue through the Moloco SDK continued to grow at an average of 20%+ month-over-month.

The 40% ROAS improvement came without sacrificing acquisition efficiency. That combination reflects what Moloco’s AI is built to do: optimize for lifetime value, not just install volume. Sango Technologies now runs a growth engine where user acquisition and ad monetization reinforce each other, scaling both sides of the business at the same time.

"Since adopting Moloco, we've been able to grow both user acquisition and ad revenue simultaneously. The transition to the unified UA and monetization setup was a major turning point. We were particularly surprised by how much ROAS improved while maintaining acquisition costs. The Moloco team consistently supports us with a deep understanding of our business goals, making them a trusted partner."
- Yuma Noma, CEO
Sango Technologies Inc

Summary

By combining Moloco’s user acquisition platform with the Moloco SDK, Ninja Miles successfully maximized both acquisition efficiency and monetization.
This case demonstrates how precise, AI-driven audience targeting and an integrated UA and monetization stack can unlock sustainable, scalable growth.

Customer

SANGO Technologies

Headquarters

Japan

Industry

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Product

Moloco SDK
Moloco Ads

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