Japan Surpasses the U.S. in Google Play Revenue—but the U.S. Still Leads Overall
In October 2012, App Annie marked a milestone: Japan overtook the U.S. as the top country by Google Play revenue, thanks to a dramatic 10× increase in spend, while U.S. revenue only doubled oneskyapp.com.
Now, in 2024–2025, global mobile app spending has reached $150 billion, growing steadily year-over-year Sensor Tower. The U.S. remains the largest individual market, contributing $52 billion in Google Play IAP revenue alone. Read more here.

While Japan still ranks third globally with around $16 billion in in-app purchases, its average spend per user continues to outpace many other markets, making it a vital target for high-end app monetization Sensor Tower.
Despite slower downloads than the U.S., Japan’s iOS revenue share is steadily rising, partially offsetting U.S. dominance and signaling strong potential for local app visibility.
Localization Is Essential in Japan
Japanese users consistently prefer native‑language experiences—both in descriptions and app store elements. In a high-ARPU market like Japan, language optimization can meaningfully boost discoverability, downloads, and conversions.
Final Thoughts
- Japan’s early dominance in Google Play monetization remains relevant, but the U.S. leads overall across app stores as of 2025.
- App localization into Japanese remains a high-ROI strategy—especially in revenue-rich markets.
- Consider localizing app title, keywords, and descriptions, and testing performance in Japanese to maximize visibility and growth potential.