
Introduction September 2026 saw notable shifts in mobile game rankings across Japan and South Korea. Established titles strengthened or lost their positions, while new entries emerged with different performance patterns across Free and Grossing charts. This analysis compares daily Top 50 rankings from August 1–31 and September 1–30, 2026, across Android and iOS in both markets.…
![[Japan vs. Korea ASO] Before the Holiday Rush: Why Direct Translation Is Not Enough for Travel App ASO in Japan and Korea (Android & iOS)](https://i0.wp.com/aixpost.com/wp-content/uploads/2026/09/260915_aixpost_thumbnail.png?resize=400%2C266&ssl=1)
In late September, Japan enters Silver Week, while Korea celebrates Chuseok, one of the country’s biggest annual holidays. This is exactly the time when users across both markets begin searching for travel, transportation, accommodation, and ways to spend the holiday period—creating one of the strongest seasonal opportunities for travel app downloads. Yet although Japan and…

In our August 2026 mobile game ranking analysis for Japan and Korea , Whiteout Survival stood out as one of the strongest titles in both markets. But why has the same game been able to perform so well in two markets with different user preferences and cultural backgrounds? Looking at the Whiteout Survival UA strategy…