Well for games most of the size is content and you can just download that: <a href="https:&#x2F;&#x2F;developer.apple.com&#x2F;library&#x2F;prerelease&#x2F;ios&#x2F;documentation&#x2F;FileManagement&#x2F;Conceptual&#x2F;On_Demand_Resources_Guide&#x2F;" rel="nofollow">https:&#x2F;&#x2F;developer.apple.com&#x2F;library&#x2F;prerelease&#x2F;ios&#x2F;documenta...</a><p>That way the OS can clear out unnecessary files and they just get downloaded again the next time you play the game. I imagine there is room for temporary video caches etc.