Storefronts last tested between 2024-01-27 and 2026-01-12. Elsevier eBooks on VitalSource was tested in 22 Apple App Store storefronts — available in 21; 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.