As early as October 5, 2022, prices of apps and in-app purchases (excluding auto-renewable subscriptions) on the App Store will increase in Chile, Egypt, Japan, Malaysia, Pakistan, Poland, South Korea, Sweden, Vietnam, and all territories that use the euro currency. In Vietnam, these increases also reflect new regulations for Apple to collect and remit applicable taxes, being value added tax (VAT) and corporate income tax (CIT) at 5% rates respectively.
In Europe, the Tier One app price has increased 20% from €0.99 to €1.19. In Japan, the price hike is even more significant, going from 120 yen to 160 yen, an increase of 33.3%.
Although Apple didn't specify the exact reason for these price increases, it's likely due to currency fluctuations.
You can view the updated price tier charts at the link below...