Split Screen funktioniert nicht

Use Split Screen app to browse your favorite social network and watch videos simultaneously.  Or watch videos and check mail, check mail and shopping, shopping and use social network simultaneously,...  Now your phone can multitasking browser with Split Screen. - Browse 2 website at the same time, no need to switch between 2 tabs. - Easy and Fast Navigation with buttons or gesture. – Payment will be charged to iTunes Account at confirmation of purchase (After free trial period if offered). – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. – Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.