I recall reading too that iOS effectively screenshots the app as you exit it and displays the screenshot while it kicks it back into memory on re-open. It looks like it&#x27;s loaded instantly but isn&#x27;t actually interactive until it fully comes back<p>I don&#x27;t believe this is where I originally read it but does mention it <a href="http:&#x2F;&#x2F;www.geek.com&#x2F;apple&#x2F;how-ios-tricks-you-into-thinking-it-is-fast-1493037&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.geek.com&#x2F;apple&#x2F;how-ios-tricks-you-into-thinking-i...</a>