Need an app developer

Hi, I've a Boonex Dolphin based website (PHP). It has inbuilt android and iphone app. The problem is, on the app, public videos and photos are not showing to the users except the photos and videos uploaded by themselves. However they are showing perfectly on the website. I need someone who can edit the apps so that it can show all the videos and photos according to their permission. like public photos must be shown to everyone while privates will stay private etc. Actually the app should follow the permission like the website and should show the contents accordingly. Need this change only on videos and photos pages. Experienced person who can achieve this requirement is welcome for the bid. Thanks