Storefronts last tested between 2022-12-06 and 2025-10-31. Dot Knot - Line & Color Puzzle was tested in 31 Apple App Store storefronts — available in 30; 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.