Storefronts last tested between 2024-02-05 and 2025-04-23. Crossmath 數學謎題休閒益智遊戲 was tested in 3 Apple App Store storefronts — available in 2; unavailable in 1 (China mainland).Roughly 1.4 billion people live in the 1 storefront where it is unavailable. App unavailability does not by itself prove censorship.